Effect of mechanical processing and heat treatment of powders on their sinterability characteristics linked with their method of manufacture. IV. The v/v vs tau function in a temperature jump in the sintering of porous bodies from molybdenum and tungsten carbide powders
Use was made of molybdenum and tungsten carbide powders, which exhibit fairly high densification rates. The main object of the sintering of specimens from a molybdenum powder was to find out to what extent the behavior in a temperature jump of a metal differing markedly in physical properties (and electronic shell structure) from the metals investigated earlier resembled or differed from that of those metals. A molybdenum powder produced by the reduction of molybdenum trioxide with hydrogen at 800 C was chosen for investigation and experiments with tungsten carbide were carried out on two batches of powders produced at low and high carbidization temperatures. The study showed that the behavior of a porous specimen from the molybdenum powder did not differ from that of other metal powders. The behavior of tungsten carbide specimens in a temperature jump was similar to that of the metal powders studied in a previous investigation.
- Research Organization:
- All-Union ScientificResearch and Design Institute of Refractory Metals and Hard Alloys
- OSTI ID:
- 6872468
- Journal Information:
- Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States), Vol. 25:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MOLYBDENUM CARBIDES
HEAT TREATMENTS
SINTERING
TEMPERATURE EFFECTS
TUNGSTEN CARBIDES
COMPARATIVE EVALUATIONS
DIAGRAMS
MOLYBDENUM OXIDES
PARTICLE SIZE
PHYSICAL PROPERTIES
POROSITY
POWDERS
REDUCTION
SINTERED MATERIALS
SURFACE PROPERTIES
VERY HIGH TEMPERATURE
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
FABRICATION
MATERIALS
MOLYBDENUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SIZE
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies