논문 상세보기

흑연블록 제조를 위한 등압성형 시 일축가압 예비성형의 압력변화에 따른 기계적 및 전기적 특성 변화 KCI 등재

Changes in Mechanical and Electrical Properties as a Function of Unidirectional Pressure Changes in Preforming While Isostatic Pressing for Graphite Block Fabrication

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/421557
구독 기관 인증 시 무료 이용이 가능합니다. 4,000원
한국분말야금학회지 (Journal of Korean Powder Metallurgy Institute)
한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

In this study, a graphite block is fabricated using artificial graphite processing byproduct and phenolic resin as raw materials. Mechanical and electrical property changes are confirmed due to the preforming method. After fabricating preforms at 50, 100, and 150 MPa, CIP molding at 150 MPa is followed by heat treatment to prepare a graphite block. 150UP-CIP shows a 12.9% reduction in porosity compared with the 150 MPa preform. As the porosity is decreased, the bulk density, flexural strength, and shore hardness are increased by 14.9%, 102.4%, and 13.7%, respectively; and the deviation of density and electrical resistivity are decreased by 51.9% and 34.1%, respectively. Therefore, as the preforming pressure increases, the porosity decreases, and the electrical and mechanical properties improve.

목차
Abstract
1. Introduction
2. Experimental procedure
    2.1. Raw materials and preparations
    2.2. Properties of Graphite Block
3. Results and Discussion
    3.1. Bulk density and Porosity
    3.2. Electrical resistivity, Flexural strength and Shorehardness
4. Conclusion
Acknowledgement
References
저자
  • 변태섭(금오공과대학교 신소재공학과) | Tae-Sub Byun (Kumoh National Institute of Technology, School of Materials Science and Engineering)
  • 전동표(금오공과대학교 신소재공학과) | Dong-Pyo Jeon (Kumoh National Institute of Technology, School of Materials Science and Engineering)
  • 이상혜(금오공과대학교 신소재공학과) | Sang-Hye Lee (Kumoh National Institute of Technology, School of Materials Science and Engineering)
  • 이상우(금오공과대학교 신소재공학과) | Sang-Woo Lee (Kumoh National Institute of Technology, School of Materials Science and Engineering)
  • 노재승(금오공과대학교 신소재공학과) | Jae-Seung Roh (Kumoh National Institute of Technology, School of Materials Science and Engineering) Corresponding author