Pressing and sintering of carbonyl molybdenum powders
Autor: | O. D. Krichevskaya, A. M. Verblovskii, S. I. Khamarmer, N. I. Aleshina, G. P. Leshchinskaya |
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Rok vydání: | 1969 |
Předmět: | |
Zdroj: | Soviet Powder Metallurgy and Metal Ceramics. 8:237-240 |
ISSN: | 1573-9066 0038-5735 |
Popis: | 1. In the article, results are given of an investigation of several technological properties of carbonyl molybdenum powders, obtained on the experimental apparatus in the laboratory for carbonyl metals. 2. As a result of microscopic investigations, it was established that the powder consists mainly of particles of dimensions up to 2μ. 3. Carbonyl molybdenum powders possess a well-developed specific surface area (0.6–1.8 m2/g) which, in particular, causes high activity in them during sintering. 4. The conditions were found for preparing fairly strong “grey” pressings of carbonyl molybdenum powders (with the introduction of a plasticizer or by preliminary heat treatment) with comparatively low specific pressing pressures (3–5 tons/cm2). 5. It was shown that the carbonyl molybdenum powders are actively sintered at 1200–1400°C (at 1400°C, samples are obtained with a porosity of 0.1%). |
Databáze: | OpenAIRE |
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