Complex shape transparent Al2O3 fabricated by integrated Spark Plasma Sintering- Additive manufacturing technology

被引：3

作者：

Torresani, Elisa ^{[1
]}

Park, Cheolwoo ^{[1
]}

Grippi, Thomas ^{[1
]}

Haines, Chris ^{[1
,2
]}

Olevsky, Eugene A. ^{[3
]}

机构：

[1] San Diego State Univ, Coll Engn, San Diego, CA 92182 USA

[2] US Army, DEVCOM Army Res Lab, Aberdeen Proving Ground, MD USA

[3] Univ Calif La Jolla, NanoEngn, San Diego, CA USA

来源：

CERAMICS INTERNATIONAL | 2024年 / 50卷 / 19期

基金：

美国国家科学基金会;

关键词：

Complex shapes; Alumina; Transparent ceramics; Simulation; Spark plasma sintering; Additive manufacturing; ALPHA-ALUMINA; OPTICAL-PROPERTIES; GRAIN-GROWTH; MICROWAVE; CERAMICS; DENSIFICATION; LASER; FUNDAMENTALS; PARAMETERS; POWDER;

D O I：

10.1016/j.ceramint.2024.05.458

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Spark plasma sintering (SPS) is one of the most promising technologies for producing polycrystalline transparent ceramics. However, it has limitations regarding the complexity of the geometries that can be produced. This study addresses these limitations by combining additive manufacturing techniques with spark plasma sintering. Additionally, a Multiphysics sintering model based on the continuum theory of sintering is employed to predict the outcomes of the SPS process, particularly the microstructure of the densified parts. As a result, the geometrically complex Al2O3 transparent parts manufactured in this study exhibit a uniform microstructure, high density (similar to 99 %), and a linear transmittance of 16 % at 490 mu m.

引用

页码：37332 / 37340

页数：9

共 70 条

[1]

[Anonymous], 2013, ASTM E112 13

[2] Microstructural Evolution During Vacuum Sintering of Yttrium Aluminum Garnet Transparent Ceramics: Toward the Origin of Residual Porosity Affecting the Transparency [J].