Tantalum carbide
TaC is a dark brown powder. Its melting point is 3880 degrees, boiling point is 5500 degrees, and its density is 14.4g/cm3. It has good chemical stability and can only be dissolved in nitric acid and hydrofluoric acid mixed solution. Tantalum carbide is not easy to oxidize in air when it is below 1000~1100. It is easy to produce nitrides under the action of nitrogen or ammonia.
Tantalum hydride
The hydrides of tantalum are very stable at ambient temperature. When heated to 1000~1200 C in high vacuum, hydrogen is released from decomposition.
Tantalum hardly occurs with hydrogen below 350, and the reaction speed increases with the increase of temperature. The solubility of hydrogen in tantalum decreases with increasing temperature. Under certain temperature and pressure, the maximum hydrogen content in tantalum is equal to H/Ta 0.02~0.08 (TaH 0.2~ TaH 0.8).
Tantalum nitride
The nitrides of tantalum have three kinds of TaN, Ta 2N and Ta 3N 5. TaN is a gray powder with blue, melting point 2980~3090 C, density 14.4g/cm3, insoluble in nitric acid, hydrofluoric acid and sulfuric acid, but dissolving in hot alkaline solution and releasing ammonia or nitrogen. Tantalum nitride generates oxide and releases nitrogen gas when heated in air.
Tantalum boride
Tantalum boride has TaB and TaB 2. The density of TaB is 14.0g/cm3, the specific resistance is 100 uomega.Cm, the melting point of TaB 2 is 3200 C, the density is 11.7g/cm3, the specific resistance is 86.5 muomomega.Cm, and it is not corroded by hydrochloric acid and water, but it can be decomposed slowly by hot sulfuric acid and hydrofluoric acid.
Tantalum selenate
The selenide of tantalum is TaSe 2, the specific resistance is 2.23 x 10-3 Omega.Cm, the relative friction coefficient at room temperature air is 0.08, the oxidation temperature in the air is 600 degrees C, and the decomposition temperature in the vacuum is 900.
Tantalum silicone
The main silicide of tantalum is TaSi 2, and there are also some other compounds, such as Ta 2Si and Ta 5Si 3. TaSi 2 melting point 2200 C, density 8.83g/cm3.
For more information, please visit http://www.samaterials.com/32-tungsten-composites
TaC is a dark brown powder. Its melting point is 3880 degrees, boiling point is 5500 degrees, and its density is 14.4g/cm3. It has good chemical stability and can only be dissolved in nitric acid and hydrofluoric acid mixed solution. Tantalum carbide is not easy to oxidize in air when it is below 1000~1100. It is easy to produce nitrides under the action of nitrogen or ammonia.
Tantalum hydride
The hydrides of tantalum are very stable at ambient temperature. When heated to 1000~1200 C in high vacuum, hydrogen is released from decomposition.
Tantalum hardly occurs with hydrogen below 350, and the reaction speed increases with the increase of temperature. The solubility of hydrogen in tantalum decreases with increasing temperature. Under certain temperature and pressure, the maximum hydrogen content in tantalum is equal to H/Ta 0.02~0.08 (TaH 0.2~ TaH 0.8).
Tantalum nitride
The nitrides of tantalum have three kinds of TaN, Ta 2N and Ta 3N 5. TaN is a gray powder with blue, melting point 2980~3090 C, density 14.4g/cm3, insoluble in nitric acid, hydrofluoric acid and sulfuric acid, but dissolving in hot alkaline solution and releasing ammonia or nitrogen. Tantalum nitride generates oxide and releases nitrogen gas when heated in air.
Tantalum boride
Tantalum boride has TaB and TaB 2. The density of TaB is 14.0g/cm3, the specific resistance is 100 uomega.Cm, the melting point of TaB 2 is 3200 C, the density is 11.7g/cm3, the specific resistance is 86.5 muomomega.Cm, and it is not corroded by hydrochloric acid and water, but it can be decomposed slowly by hot sulfuric acid and hydrofluoric acid.
Tantalum selenate
The selenide of tantalum is TaSe 2, the specific resistance is 2.23 x 10-3 Omega.Cm, the relative friction coefficient at room temperature air is 0.08, the oxidation temperature in the air is 600 degrees C, and the decomposition temperature in the vacuum is 900.
Tantalum silicone
The main silicide of tantalum is TaSi 2, and there are also some other compounds, such as Ta 2Si and Ta 5Si 3. TaSi 2 melting point 2200 C, density 8.83g/cm3.
For more information, please visit http://www.samaterials.com/32-tungsten-composites
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