Preparation methods and performance of new tungsten-based ceramic alloy

Jianping Fu; Kai Ren; Likui Yin; Rui Yang; Taiyong Zhao; Zhigang Chen

Materials & Design (Aug 2021)

Preparation methods and performance of new tungsten-based ceramic alloy

Jianping Fu,
Kai Ren,
Likui Yin,
Rui Yang,
Taiyong Zhao,
Zhigang Chen

Affiliations

Jianping Fu: Underground Target Damage Technology National Defense Key Discipline Laboratory, North University of China, Taiyuan 030051, Shanxi, China; Institute of Military-Civilian Integration and Innovation, North University of China, Taiyuan 030051, Shanxi, China; Corresponding authors at: North University of China, China.
Kai Ren: Underground Target Damage Technology National Defense Key Discipline Laboratory, North University of China, Taiyuan 030051, Shanxi, China; Institute of Military-Civilian Integration and Innovation, North University of China, Taiyuan 030051, Shanxi, China; Corresponding authors at: North University of China, China.
Likui Yin: Underground Target Damage Technology National Defense Key Discipline Laboratory, North University of China, Taiyuan 030051, Shanxi, China; Institute of Military-Civilian Integration and Innovation, North University of China, Taiyuan 030051, Shanxi, China
Rui Yang: Underground Target Damage Technology National Defense Key Discipline Laboratory, North University of China, Taiyuan 030051, Shanxi, China
Taiyong Zhao: Underground Target Damage Technology National Defense Key Discipline Laboratory, North University of China, Taiyuan 030051, Shanxi, China; Institute of Military-Civilian Integration and Innovation, North University of China, Taiyuan 030051, Shanxi, China
Zhigang Chen: Underground Target Damage Technology National Defense Key Discipline Laboratory, North University of China, Taiyuan 030051, Shanxi, China; Institute of Military-Civilian Integration and Innovation, North University of China, Taiyuan 030051, Shanxi, China; Corresponding authors at: North University of China, China.

Journal volume & issue: Vol. 206
p. 109781

Abstract

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In this study, a new tungsten-based ceramic alloy (TCA) is obtained using liquid-phase sintering during the preparation of traditional 95 W alloys. In this process, sintered Al2O3 ceramic microspheres with a purity of 99%, a mass fraction of 1% ~ 5%, and the particle size of 60 ~ 120 μm are added. This new material's microstructure, mechanical properties, fracture mechanism, and high-speed penetration performance are studied. Results show that the TCA's tensile strength, ductility, and impact toughness decrease with the addition of Al2O3 ceramic. However, when 3 wt% Al2O3 ceramic is added, the TCA spherical fragment exhibits the best high-speed impact property against the 616 rolled homogeneous armor plate (22SiMn2TiB) of 15 mm thick. Therefore, TCA can be used as the material of the kinetic energy damage element to improve its high-speed penetration ability.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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