Laser direct deposited transparent magnesium aluminate spinel ceramics

被引：14

作者：

Pappas, John M. ^{[1
]}

Kinzel, Edward C. ^{[2
]}

Dong, Xiangyang ^{[1
]}

机构：

[1] Missouri Univ Sci & Technol, Mech & Aerosp Engn, Rolla, MO 65409 USA

[2] Univ Notre Dame, Aerosp & Mech Engn, Notre Dame, IN 46556 USA

来源：

MANUFACTURING LETTERS | 2020年 / 24卷

关键词：

Transparent ceramics; Magnesium aluminate spinel; Additive manufacturing; Laser direct deposition; Laser engineered net shaping; RADIATION CHARACTERISTICS; CRACK SUPPRESSION; MICROSTRUCTURE; FABRICATION; GLASS;

D O I：

10.1016/j.mfglet.2020.04.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper investigates the use of Laser Direct Deposition to fabricate transparent magnesium aluminate spinel (MAS) ceramics. Dense MAS ceramic samples are created from a homogeneous mixture of alumina and magnesia precursors without a need of lengthy pre-processing procedures normally required by traditional sintering techniques. The printed samples are verified to be a single MAS phase through X-ray diffraction peak analysis. Cracking and residual porosity are the key issues affecting the optical/infrared transmission of the printed parts. With optimized processing conditions, the parts shift from being translucent to transparent, indicating the potential of the proposed method in direct printing transparent ceramic parts. (C) 2020 Society of Manufacturing Engineers (SME). Published by Elsevier Ltd. All rights reserved.

引用

页码：92 / 95

页数：4

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