초록 ▼

Solid solutions of molybdenum and tungsten having molybdenum to tungsten atom ratios between about 1:1 and about 10:1 are produced by heating a mechanically milled mixture of a molybdenum oxide and tungsten oxide to a temperature between about 1000°C. and about 1300°C. at a rate of at least about 20

Solid solutions of molybdenum and tungsten having molybdenum to tungsten atom ratios between about 1:1 and about 10:1 are produced by heating a mechanically milled mixture of a molybdenum oxide and tungsten oxide to a temperature between about 1000°C. and about 1300°C. at a rate of at least about 20°C. per minute in a hydrogen-containing atmosphere and holding at temperature to reduce the oxides of molybdenum and tungsten and to provide a homogeneous solid solution of molybdenum and tungsten. The homogeneous solid solution is mixed with a stoichiometric excess of carbon and heated to a temperature between about 1200°C. and about 1800°C. under a protective atmosphere to react the carbon with the alloy powder to form a solid solution of hexagonal monocarbides.

대표청구항 ▼

A process for the production of a homogeneous solid-solution of molybdenum and tungsten which comprises: mixing finely divided oxides of molybdenum and tungsten to provide a molybdenum to tungsten atom ratio of between about 1:1 and about 10:1 and heating the mixture to a reducing temperature betwee

A process for the production of a homogeneous solid-solution of molybdenum and tungsten which comprises: mixing finely divided oxides of molybdenum and tungsten to provide a molybdenum to tungsten atom ratio of between about 1:1 and about 10:1 and heating the mixture to a reducing temperature between about 1000°C. and about 1300°C. at a rate of at least about 20°C. per minute from about 650°C. to the reducing temperature in a hydrogen-containing atmosphere to provide a homogeneous solid solution of molybdenum and tungsten.