Boride Powder

Calcium Hexaboride CaB6 Powder CAS 12007-99-7

About Calcium Hexaboride CaB6 Powder:
Calcium hexaboride (calcium boride) is a compound of calcium and boron, with the chemical formula CaB6. Due to its high conductivity, hardness, chemical stability and melting point, it is an important material. It is a black, shiny, chemically inert powder with low density. It has a typical cubic structure of six metal boride, with octahedral units of six boron atoms and calcium atoms.

CaB6 has been investigated in the past due to a variety of peculiar physical properties, such as superconductivity, valence fluctuation and Kondo effects. However, the most remarkable property of calcium boride is its ferromagnetism. It occurs at unexpectedly high temperatures (600K) and with a low magnetic moment. The origin of this high-temperature ferromagnetism is the ferromagnetic phase of the dilute electron gas, linkage to the presumed excitonic state in calcium boride, or external impurities on the surface of the sample. The impurities might include iron and nickel, probably coming from impurities in the boron used to prepare the sample.

CaB6 is insoluble in H2O, MeOH (methanol), and EtOH (ethanol) and dissolves slowly in acids. Its microhardness is 27 GPa, Knoop hardness is 2600 kg/mm2), the Young modulus is 379 GPa, and electrical resistivity is greater than 2·1010 Ω·m for pure crystals. CaB6 is a semiconductor with an energy gap estimated at 1.0 eV. The low, semi-metallic conductivity of many CaB6 samples can be explained by unintentional doping due to impurities and possible non-stoichiometry. Feel free to send an inquiry to get the latest price if you would like to buy Calcium Hexaboride CaB6 Powder in bulk.

Product Performance of Calcium Hexaboride CaB6 Powder:

Calcium boride has the characteristics of high melting point and high hardness. Its physical and chemical properties are quite stable. When calcined in air, sub-micron CaB6 will only gain weight after 800 degrees Celsius and is not easy to oxidize. CaB6 is generally insoluble in hydrochloric acid and sulfuric acid, so technically to remove impurity materials by hot hydrochloric acid, but CaB6 is soluble in nitric acid.

How is Calcium Hexaboride CaB6 Powder produced?
One of the main reactions of industrial production is:
CaO + 3 B2O3 + 10 Mg→CaB6 + 10 MgO
Other methods of producing CaB6 powder include:

Calcium or calcium oxide reacts directly with boron at 1000°C;
Ca + 6B→CaB6
Ca(OH)2 reacts with boron under a vacuum of about 1700°C (carbothermal reduction);
Ca（OH）2 + 7B→CaB6 + BO（g）+ H2O（g）
The reaction of calcium carbonate and boron carbide under vacuum above 1400°C (Carbothermal reduction)
CaO and H3BO3 react with Mg to 1100°C.
Low temperature (500°C) synthesis
CaCl2 + 6NaBH4→CaB6 + 2NaCl + 12H2 + 4Na
As a result, the material quality is relatively poor.

In order to produce, for example, pure calcium boride single crystals used as cathode materials, the CaB6 powder thus obtained is further recrystallized and purified by zone melting technology. The typical growth rate is 30 cm/h, and the crystal size is about 1x10 cm.
Single crystal CaB6 nanowires (diameter 15-40 nm, length 1-10 microns) can be obtained by pyrolyzing diborane (B2H6) on calcium oxide (CaO) powder at 860-900°C in the presence of Ni catalyst.

Technical Parameter of Calcium Hexaboride CaB6 Powder:

Application of Calcium Hexaboride CaB6 Powder:

Storage Condition of Calcium Hexaboride CaB6 Powder:
Damp reunion will affect CaB6 powder dispersion performance and using effects, therefore, calcium hexaboride CaB6 powder should be sealed in vacuum packing and stored in cool and dry room, the calcium hexaboride can not be exposure to air. In addition, the CaB6 powder should be avoided under stress.

Packing & Shipping of Calcium Hexaboride CaB6 Powder:
We have many different kinds of packing which depends on the calcium hexaboride CaB6 powder quantity.
Calcium hexaboride CaB6 powder packing: vacuum packing, 1kg/bag, 25kg/barrel, or as your request.
Calcium hexaboride CaB6 powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

2022-11-02

Boride Powder

Zirconium Diboride ZrB2 Powder CAS 12045-64-6

About Zirconium Diboride ZrB2 Powder:
Zirconium boride powder is a chemical substance and its molecular formula is ZrB2. Nature gray hard crystals. Zirconium boride has three components: zirconium monoboride, zirconium diboride, and zirconium tribromide. Only zirconium diboride is stable in a wide temperature range. Industrial production is mainly based on zirconium diboride. Zirconium diboride is a hexagonal crystal, gray crystal or powder, with a relative density of 5.8 and a melting point of 3040°C. High-temperature resistance, high strength at room temperature and high temperature. Good thermal shock resistance, low resistance, anti-oxidation at high temperature. The melting point is about 3000°C. With metallic luster.
 
Zirconium diboride powder(ZrB2) is a highly covalent refractory ceramic material with a hexagonal crystal structure. ZrB2 is an ultra-high temperature ceramic (UHTC) with a melting point of 3246°C. Coupled with a lower density of ~6.09 g/cm3 (the measured density may be higher due to ha impurities) and good high-temperature strength, it is suitable for high-temperature aerospace applications, such as hypersonic flight or rocket propulsion systems, for example, Furnace components, high-temperature electrodes, rocket engines, thermal protection structures for spacecraft with temperature capabilities exceeding 1800°C, and heavy-wear applications.
 
It is an unusual ceramic with relatively high thermal and electrical conductivity and has the same characteristics as the titanium diboride and diboride shares of the same structure. In addition to its fire resistance, good thermal conductivity (>50 W/m/K), inertness to molten metal, good thermal shock resistance, and high electrical conductivity (~105 S/cm), ZrB2 can also pass EDM basic ceramic molding.
 
ZrB2 parts are usually hot-pressed (applying pressure to the heated powder) and then machined to form. The covalent nature of the material and the presence of surface oxides hinder the sintering of ZrB2. The presence of surface oxides will increase the coarsening of crystal grains before densification during the sintering process. Pressureless sintering of ZrB2 is possible. Sintering additives such as boron carbide and carbon will react with surface oxides, thereby increasing the driving force for sintering, but the mechanical properties will decrease compared to hot-pressed ZrB2. Feel free to send an inquiry to get the latest price if you would like to buy Zirconium Diboride ZrB2 Powder in bulk.

Properties of Zirconium Diboride ZrB2 powder CAS 12045-64-6:
Molecular formula: ZrB2
Molar mass: 112.85 g/mol
Appearance: grey-black powder
Density: 6.085 g/cm3
Melting point: 3246 °C
Solubility in water: Insoluble
Crystal structure: Hexagonal, hP3
Space group: P6/mmm, No. 191

Features of Zirconium Diboride ZrB2 powder:
TiB2, ZrB2, HfB2, VB2, NbB, NbB2, TaB, TaB2, CrB2, Mo2B5, W2B5, Fe2B, FeB, CoB, Co2B, NiB, Ni2B, Ni2B, LaB6, UB4, UB2.
Zirconium diboride (ZrB2) is a highly covalent refractory ceramic material with a hexagonal crystal structure. ZrB2 is an ultra high temperature ceramic (UHTC) with a melting point of 3246 °C. This along with its relatively low density of ~6.09 g/cm3 (measured density may be higher due to hafnium impurities) and good high temperature strength makes it a candidate for high temperature aerospace applications such as hypersonic flight or rocket propulsion systems. It is an unusual ceramic, having relatively high thermal and electrical conductivities, properties it shares with isostructural titanium diboride and hafnium diboride.

How is Zirconium Diboride ZrB2 Powder produced?
ZrO2 and HfO2 are reduced to their respective diboron silanes by metal thermal reduction. Use cheap precursor materials and react according to the following reactions:
 
ZrO 2 + B 2 O 3 + 5Mg→ZrB 2 + 5MgO
 
The precursor materials for this reaction (ZrO 2 / TiO 2 / HfO 2 and B 4 C) are cheaper than those required for stoichiometric and boron thermal reactions. Prepare ZrB2 at a temperature higher than 1600°C for at least 1 hour through the following reaction:
 
2ZrO 2 + B 4 C + 3C→2ZrB 2 + 4CO
 
This method requires a slight excess of boron because some boron is oxidized during the boron carbide reduction process. It is also observed that ZrC is the product of the reaction, but if the reaction is carried out under an excess of 20-25% of B4C, the ZrC phase disappears and only ZrB2 remains. The lowest synthesis temperature (~1600°C) will produce UHTC with finer dimensions and better sinterability. Before boron carbide reduction, the boron carbide must be ground to promote the oxide reduction and diffusion process.
 
ZrO2 and HfO2 can be dispersed on the boron carbide polymer precursor before the reaction. in. Heating the reaction mixture to 1500°C results in the formation of boron carbide and carbon in situ, and the subsequent reduction of ZrO2 to ZrB2.
 
The gas phase is used to reduce the vapors of zirconium tetrachloride and boron trichloride when the substrate temperature is higher than 800°C. Recently, alternative ZrB2 films can also be prepared by physical vapor deposition.

Applications of Zirconium Diboride ZrB2 Powder:
Zirconium boride has high hardness, high thermal conductivity, good oxidation resistance and good corrosion resistance. Zirconium diboride is used in special ceramic refractory industries, nuclear industry, aerospace industry and military industries. Zirconium diboride can be used as a surface coating for rolling balls and smooth solid materials.
 
Carbon fiber reinforced zirconium diboride composites exhibit high density, while silicon carbide fiber-reinforced zirconium diboride composites are brittle and show catastrophic damage.
 
Zirconium diboride (ZrB2) can be used as thin-film electronic components for sensors, actuators and micro-systems operating in high-temperature environments because it has metal-like conductivity and has a melting temperature of 3245°C.
Other applications of Zirconium Diboride ZrB2 Powder:
(1) zirconium diboride powder is used to produce materials for ceramics.
(2) zirconium diboride powder can be used as a neutron absorber.
(3) zirconium diboride powder can be used as an abrasion-resistant coating.
(4) zirconium diboride powder can be used as crucible lining and anticorrosive chemical equipment.
(5) zirconium diboride powder can be used as anti-oxidation compound material.
(6) zirconium diboride powder can be used as a refractory material, especially in the status of anticorrosion of molten metals.
(7) zirconium diboride powder can be used as a thermally enhanced additive.
(8) zirconium diboride powder can be used for high-temperature resistance.
(9) zirconium diboride powder can be used as a special type of dope against high temperature, corrosion and oxidation.

Storage Condition of Zirconium Diboride ZrB2 Powder:
Damp reunion will affect ZrB2 powder dispersion performance and using effects, therefore, zirconium diboride ZrB2 powder should be sealed in vacuum packing and stored in cool and dry room, the zirconium diboride ZrB2 powder can not be exposure to air. In addition, the ZrB2 powder should be avoided under stress.

Packing & Shipping of Zirconium Diboride ZrB2 Powder:
We have many different kinds of packing which depends on the zirconium diboride ZrB2 powder quantity.
Zirconium diboride ZrB2 powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Zirconium diboride ZrB2 powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.

2022-11-02

Boride Powder

Aluminum Magnesium Boride BAM AlMgB14 Powder

About AlMgB14 alloy powder:
Aluminum boride or Al3Mg3B56, commonly known as BAM, is a compound of aluminum, magnesium, and boron. Although its nominal formula is AlMgB14, its chemical composition is closer to Al0.75Mg0.75B14. It is a highly wear-resistant ceramic alloy with an extremely low sliding friction coefficient, reaching a record value of 0.04 in the unlubricated AlMgB14-TiB2 composite material, and a record value of 0.02 in the lubricated AlMgB14-TiB2 composite material. BAM was first reported in 1970. It has an orthogonal structure and each unit cell has four icosahedral B12 units. The thermal expansion coefficient of this super hard material is comparable to other widely used materials such as steel and concrete. Biomedicalmaterialsprogram is a trusted global Aluminum-Magnesium Boride BAM AlMgB14 Powder supplier. Feel free to send an inquiry about the latest price of AlMgB14 at any time.
 
How is AlMgB14 alloy Powder Produced?
AlMgB14 aluminum magnesium boride material has a better anti-wear property than diamond and is a new type of anti-degradation material. AlMgB14 has a density of only 2.66 g/cm3, which is much lower than other superhard materials (such as diamond and cubic boron nitride), and does not react with carbon steel, stainless steel, or titanium alloy at temperatures up to 1300 °C, and has high thermal stability.
AlMgB14 aluminum magnesium boride has a much higher conductivity than other conventional super hard materials and is basically equivalent to the conductivity of poly-silicon. The most attractive aspect of AlMgB14 is its low price, which is 5 to 10 times lower than diamond and cubic boron nitride. These excellent properties make AlMgB14 not only wearable,
Traditional fields such as protective coatings and cutting equipment manufacturing can also be widely used in advanced scientific fields such as thermoelectric devices, photodetectors, neutron masks, micro machines, and aerospace key components.
 
Applications of AlMgB14 alloy Powder:
BAM is commercially available, and research is being conducted for more potential applications. For example, the pistons, seals, and vanes on the pump can be coated with BAM or BAM + TiB2 to reduce friction between parts and increase wear resistance. The reduction in friction will reduce energy consumption. BAM can also be coated on cutting tools. The reduced friction will reduce the force required to cut the object, extend tool life, and may allow an increase in cutting speed. It has been found that only 2-3 microns thick coating can increase efficiency and reduce cutting tool wear.
Ternary Boride AlMgB14 alloy powder is one of the research hotspots in the field of superhard materials in the world. It has attracted widespread attention from scholars at home and abroad in recent years. Unlike traditional metastable superhard materials such as diamond and cubic boron nitride, AlMgB14 superhard materials are equilibrium materials with high hardness, low density, low coefficient of friction, high thermal stability, and good thermoelectric properties.

Properties and application of AlMgB14 alloy powder:
AlMgB14 aluminum magnesium boride material has a better anti-wear property than diamond and is a new type of anti-degradation material. AlMgB14 has a density of only 2.66 g/cm3, which is much lower than other superhard materials (such as diamond and cubic boron nitride), and does not react with carbon steel, stainless steel, or titanium alloy at temperatures up to 1300 °C, and has high thermal stability.
AlMgB14 aluminum magnesium boride has a much higher conductivity than other conventional superhard materials and is basically equivalent to the conductivity of polysilicon. The most attractive aspect of AlMgB14 is its low price, which is 5 to 10 times lower than diamond and cubic boron nitride. These excellent properties make AlMgB14 not only wearable,
Traditional fields such as protective coatings and cutting equipment manufacturing can also be widely used in advanced scientific fields such as thermoelectric devices, photodetectors, neutron masks, micromachines, and aerospace key components. 

Storage Condition of AlMgB14 Aluminum Magnesium Boride Powder:
The damp reunion will affect AlMgB14 aluminum magnesium boride dispersion performance and using effects, therefore, AlMgB14 aluminum magnesium boride powder should be sealed in vacuum packing and stored in the cool and dry room, the AlMgB14 aluminum magnesium boride can not be exposure to air. In addition, the AlMgB14 powder should be avoided under stress.

Packing & Shipping of AlMgB14 Aluminum Magnesium Boride Powder:
We have many different kinds of packing which depend on the AlMgB14 aluminum magnesium boride powder quantity.
AlMgB14 aluminum magnesium boride powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
AlMgB14 aluminum magnesium boride powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.

2022-11-02

Boride Powder

Titanium Diboride TiB2 Powder CAS 12045-63-5

About Titanium Diboride TiB2 Powder:
Titanium diboride powder is gray or gray-black and has a hexagonal (AlB2) crystal structure. Its melting point is 2980°C and it has high hardness. The anti-oxidation temperature of titanium diboride in the air can reach 1000℃, and it is stable in HCl and HF acid. Titanium diboride is mainly used to prepare composite ceramic products. Because of its resistance to molten metal corrosion, it can be used in the manufacture of molten metal crucibles and electrolytic cell electrodes. If you want to know titanium diboride price, please contact us:sales1@rboschco.com

Titanium diboride (TiB2) is an extremely hard ceramic with excellent mutation, oxidation stability and wear resistance. Titanium diboride (TiB2) is an extremely hard ceramic used, for example, in special ballistic armor applications. In addition, unlike most ceramic components, it is conductive. It is also a reasonable electrical conductor, so it can use the conduit material in aluminum smelting and can be formed by electrical discharge machining.

Titanium diboride (TiB2) is a ceramic material with high strength and hardness, and its melting point, hardness, strength-to-density ratio and wear resistance are relatively high. However, the current use of this material is probably only in the anti-evolving important application is the use of TiB2 waveguides in the electrochemical reduction of alumina to aluminum metal. If electrical discharge machining of TiB 2 is performed, other applications may develop rapidly. Can be perfected. The wide application of this material may be restricted by economic factors, especially the cost of densifying high melting point materials and the reduction in material performance changes. Feel free to send an inquiry to get the latest price if you would like to buy Titanium Diboride TiB2 Powderin bulk.

Feature of TiB2 Titanium Diboride Powder:
Titanium diboride powder is gray or gray-black and has a hexagonal (AlB2) crystal structure. Its melting point is 2980°C and it has high hardness. The anti-oxidation temperature of titanium diboride in air can reach 1000℃, and it is stable in HCl and HF acid. Titanium boride is mainly used to prepare composite ceramic products. Because it can resist the corrosion of molten metal, it can be used in the manufacture of molten metal crucibles and electrolytic cell electrodes.

 Performance of Titanium Diboride TiB2 Powder:

1.   High melting point

2.   High hardness

3.   Wear resistance

4.   Resistant to acids

5.   Excellent conductivity

6.   High thermal conductivity

How is Titanium Diboride TiB2 Powder produced?
Titanium Diboride TiB2 is the most stable of several titanium boron compounds. This material does not appear in nature, but it can be synthesized by carbothermal reduction of TiO2 and B2O3. Like most other covalently bonded materials, TiB2 is resistant to sintering and is usually compacted by hot pressing or hot isostatic pressing. Pressureless sintering of TiB2 can achieve high density but requires liquid sintering aids such as iron, chromium and carbon.

TiB2 does not naturally exist on the earth. Titanium diboride powder can be prepared by various high-temperature methods, such as direct reaction to prepare titanium or its oxide/hydride. When elemental boron exceeds 1000°C, carbothermal reduction by thermite reaction has been developed in various synthesis pathways. Electrochemical synthesis and solid-state reaction were used to prepare more refined titanium diboride in large quantities.

Technical Parameter of  TiB2 Titanium Diboride Powder :

Application of Titanium Diboride TiB2 Powder:

Titanium Diboride (TiB2) is a hard material with high strength and high wear resistance at elevated temperatures. The high density, combined with the high elastic modulus and high compressive strength, has to lead to its use in armor components.
It is unaffected by most chemical reagents and has excellent stability and wettability in liquid metals such as zinc and aluminum. This, along with its high electric conductivity, has led to its use in Hall- Héroult cells for aluminum production. It is also used as crucibles for molten metals.Due to its high hardness, extremely high melting point and chemical inertness, TiB2 is a candidate material for many applications.

Ballistic armor
The combination of high hardness and medium strength makes it attractive for ballistic armor, but its relatively high density and difficulty in forming shaped parts make it less attractive than some other ceramics.

Aluminum Smelting
The chemical inertness and good conductivity of TiB2 have made it used as a cathode in Hall-Heroult batteries used for primary aluminum smelting. It can also be used as a crucible and metal evaporation boat for processing molten metal.

Other uses
High hardness, medium strength and good wear resistance make titanium diboride a candidate material for sealing parts, wearing parts and composite materials with other materials and cutting tools.
Used in combination with other major oxide ceramics, TiB2 is used to form composite materials, where the presence of the material helps increase the strength and fracture toughness of the matrix.
Potential applications of TiB2
The current uses of TiB2 are almost limited to special applications in the fields of impact-resistant armor, cutting tools, crucibles, neutron absorbers and wear-resistant coatings.

TiB2 is widely used as a vaporizer for vaporizing aluminum. For the aluminum industry, it is a selective material that can be used as an inoculant for grain refinement when casting aluminum alloys because of its implantability, low solubility in molten aluminum and good electrical conductivity.

TiB2 films can be used to provide wear and corrosion resistance to inexpensive and/or strong substrates.

Storage Condition of Titanium Diboride TiB2 Powder :
Titanium Diboride TiB2 Powder dispersion performance and using effects, therefore, titanium diboride TiB2 powder should be sealed in vacuum packing and stored in cool and dry room, the titanium diboride TiB2 powder can not be exposure to air. In addition, the TiB2 powder should be avoided under stress.

Packing & Shipping of Titanium Diboride TiB2 Powder :
We have many different kinds of packing which depends on the titanium diboride TiB2 powder quantity.
Titanium diboride TiB2 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Titanium diboride TiB2 powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

2022-11-02