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Molybdeen Tungsten Alloy Property

De belangrijkste eigenschappen van wolfraam en molybdeen legeringen hebben chemische en fysische eigenschappen.

De fysische eigenschappen van wolfraam-molybdeen legering (samenstelling)

Project

Atom ordinal

183.85

Atomic weight

95.95

Body-centered cubic

Crystal structure

Body-centered cubic

3410°C

Melting

2622°C

5660°C

Boiling point

4804°C

19.3 g/cm³

Density

10.22g/cm³

190.3 kJ/kg

Heat of fusion

289.7 kJ/kg

0.14kJ/(kg·K)

Specific heat（20-100°C）

0.26kJ/(kg·K)

20°C	5.4×10^-6Ω·cm
500°C	1.8×10^-5Ω·cm
1000°C	5.1×10^-5Ω·cm
2000°C	8.3×10^-5Ω·cm
3000°C	1.1×10⁴Ω·cm

Resistivity

20°C	5.6×10^-6Ω·cm
500°C	2.4×10^-5Ω·cm
1000°C	3.6×10^-5Ω·cm
1500°C	5.3×10^-5Ω·cm
2500°C	7.8×10^-5Ω·cm

4.6×10^-3 /K

Temperature coefficient of resistance

4.7×10^-3 /K

20°C	167.5 W(m·K)
100°C	159.2 W(m·K)
500°C	121.5 W(m·K)
1000°C	111.0 W(m·K)
2000°C	93.0 W(m·K)

Thermal Conductivity

20°C	146.5 W(m·K)
100°C	138.2 W(m·K)
500°C	121.5 W(m·K)
1000°C	98.8 W(m·K)
1500°C	83.8 W(m·K)

100°C	4.5×10^-6 /K
1000°C	4.6×10^-6 /K
2000°C	5.4×10^-6 /K
3000°C	6.6×10^-6 /K

Coefficient of linear expansion

100°C	5.2×10^-6 /K
500°C	5.7×10^-6 /K
1000°C	5.8×10^-6 /K
1500°C	6.5×10^-6 /K

2000°C	3.89×10^-9 Pa
2500°C	2.68×10^-5 Pa
3000°C	1.24×10^-2 Pa

Vapor Pressure

1600°C	7.09×10^-8 Pa
2000°C	5.58×10^-4 Pa
2500°C	1.33 Pa

4.5 eV

Electronic work function

4.4 eV

鎢鉬制品

Chemische eigenschappen van wolfraam en molybdeen legering (samenstelling)

Wolfram	Media?	Molybdenum?
No reaction	Hydrogen?	No reaction?
No reaction	Water?	No reaction?
Rapid oxidation state under hot	Steam?	700℃strongly oxidizing?
Slight oxidation at room temperature 400 ~ 500 ° C oxidation was significantly 700 ° C above the rapid oxidation of WO3	Air?	Slight oxidation at room temperature 400℃was significantly oxidized? 600℃or more rapidly oxidized to MoO3?
800 ° C began to absorb carbon 1400-1600 ° C to generate brittle WC	Carbon?	900℃began to absorb carbon 1300 ~ 1400℃to generate brittle MO3C
850 ° C began to become brittle 1000 ° C or more generated WC	Carbon monoxide?	800℃above the reaction Mo2C
1200 ° C or more oxidized tungsten	Carbon dioxide?	700℃above the oxidation of molybdenum
2000 ° C or less does not react 2300 ° C or more nitrides	Nitrogen?	500℃or less does not react 600℃or more brittle 1500℃or more nitrides
Under the hot state is oxidized	Nitrogen dioxide?	Under the hot state is oxidized
A little hot state reaction	Sulfur?	440℃above the reaction of sulfides
Under the hot state is oxidized	Sulfur dioxide?	Under the hot state is oxidized
Fluoride is generated at room temperature 250-300 ° C to generate chloride Bromide and iodide generated under the hot state	Halogen?	Fluoride is generated at room temperature 250℃to generate chloride Does not react with the iodine hot state
Do not react at room temperature	Ammonia?	The reaction temperature is slightly lower
Almost insoluble in sodium hydroxide solution Rapidly dissolved in the molten sodium hydroxide	Sodium hydroxide?	Slightly dissolved in sodium hydroxide solution Rapidly dissolved in the molten sodium hydroxide
Slightly dissolved	Nitrate?	Easily dissolved
Sulfuric acid at room temperature but the reaction is not dissolved in concentrated sulfuric acid little Slowly soluble in hot dilute sulfuric acid and concentrated sulfuric acid	Sulfuric acid?	Slightly dissolved in dilute sulfuric acid at room temperature was slowly dissolved in hot dilute sulfuric acid Slowly dissolved in concentrated sulfuric acid 200 ~ 50℃was dissolved in concentrated sulfuric acid rapidly
Do not react at room temperature Slightly dissolved at 100 ° C	Hydrochloric acid?	Slightly dissolved in hot dilute hydrochloric acid
Slightly dissolved at room temperature	Hydrofluoric acid?	Slightly dissolved at room temperature?
Was dissolved in hot aqua regia	Aqua regia?	Dissolved at room temperature, dissolved in hot aqua regia quickly?
Rapidly dissolved in the molten salt	Sodium nitrite	Rapidly dissolved in the molten salt

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