Rapid sintering of nanocrystalline 8 mol.%Y2O3-stabilized ZrO2 by high-frequency induction heating method

被引：43

作者：

Kim, Hwan-Cheol ^{[1
]}

Shon, In-Jin ^{[1
]}

Jeong, In-Kyoon ^{[1
]}

Ko, In-Yong ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Dept Adv Mat Engn, Res Ctr Adv Mat Dev, Engn Res Inst, Jeonbuk 560756, South Korea

来源：

METALS AND MATERIALS INTERNATIONAL | 2006年 / 12卷 / 05期

关键词：

sintering; mechanical properties; microstructure; nanomaterials; hardness;

D O I：

10.1007/BF03027705

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using a high-frequency induction-heating sintering (HFIHS) method, nanocrystalline 8 mol.%Y2O3-stabilized ZrO2 was obtained from ultra fine powders. The observed advantages of this process include very quick densification to near theoretical density and prohibition of grain growth in namo-structured materials. Nearly fully dense nanocrystalline 8 mol%Y2O3-stabilized ZrO2, with a relative density of up to 99.8%, could be obtained with simultaneous application of 100 MPa pressure and an induced current within 10 min of sintering time without significant change in grain size. The influences of the sintering temperature and the mechanical pressure on the final density and grain size, of the products were investigated. The hardness and fracture toughness of the dense ZrO2 ceramics produced by HFIHS were investigated.

引用

页码：393 / 398

页数：6

共 29 条

[1] A CRITICAL-EVALUATION OF INDENTATION TECHNIQUES FOR MEASURING FRACTURE-TOUGHNESS .1. DIRECT CRACK MEASUREMENTS [J].