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中南大学学报(自然科学版)

Journal of Central South University

第17卷    第5期    总第51期    1986年10月

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氧化钨氢还原过程形貌变化
曾昭明1,顾汉滨1

(1.有色冶金系)

摘 要: 本文用三种不同形态结构的仲钨酸铵(APT)为原料,在接近工业的条件下,用扫描电镜(SEM)对氢还原过程产物的形貌变化作了观察、分析和比较,并选择部份试样用X射线对物相组成作了鉴定,同时对还原钨粉的粒度控制阶段作了讨论。

 

关键字: 氧化钨; 氢还原; 形貌变化

THE MORPHOLOGY EVOLUTION OF PRODUCTS DURING HYDROGEN REDUCING TUNGSTEN OXIDE
曾昭明1,顾汉滨1

1.有色冶金系

Abstract:Because the property and quality of the final tungsten product are controlledto a great extent by the particle size and morphology of tungsten powder, greatattention has been paid to the reduction process as well as the quality of startingmaterial during manufacturing tungsten powder. The present work examined thereduction process under conditions approximating to the industrial practice. Thespecific aim is to observe the morphology evolution at intermediate and final stagesof reduction. Three kinds of morphological APT were used in order to investigatethe relation between various kinds of APT and the size and uniformty of hydrogenreduced tungsten powder. The morphology of APT of the intermediate and finalproducts of reduction was observed by SEM.

 

Key words: Morphological change hydrogen reduction of tungsten oxide; SEM

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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