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분말응집체의 치밀화에 관한 모델

Title
분말응집체의 치밀화에 관한 모델
Other Titles
A Model on the Densification of Agglomerates of Powders
Author
이재성
Keywords
Powder agglomerate; Densification model; Cold isostatic pressing; 공학; 금속공학
Issue Date
2004-08
Publisher
한국분말야금학회
Citation
한국분말야금학회지, v. 11, No. 4, Page. 301-307
Abstract
Successful implementation of the powder forming process requires a detailed understanding of several interacting phenomena. The aim is to better control the process variables and to optimize the design parameters. A number of studies were carried out using various constitutive models that take the density change during powder forming into account. Most of them were developed for powders and sintered porous metals, but few of them can describe powder agglomerates, whose behaviour is different from that of uniformly arranged powders. The modification is needed to account for the effect of agglomeration on densification behaviour. Incorporating powder agglomeration into a constitutive model is of considerable importance, as it provides a possibility of relating the powder densification response to microstructural characteristics of powder particles, especially in case of nano powders. In this paper, we proposed a new powder agglomerate model in order to describe the unique densification behaviour of nano powders. The proposed model was applied to the densification of powder agglomerates during cold isostatic pressing.
URI
https://information.hanyang.ac.kr/#/eds/detail?an=edssks.2374&dbId=edsskshttps://repository.hanyang.ac.kr/handle/20.500.11754/151688
ISSN
1225-7591; 1225-7591
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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