A5079888913- Advanced ceramic materials synthesis
- Additive Manufacturing and 3D Printing Technologies
- Additive Manufacturing Materials and Processes
- Advanced materials and composites
- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Bone Tissue Engineering Materials
- Metal and Thin Film Mechanics
- Glass properties and applications
- Injection Molding Process and Properties
Guangdong Institute of Intelligent Manufacturing
2022-2024
Guangdong Academy of Sciences
2022-2024
Key Laboratory of Guangdong Province
2023-2024
Dalian University of Technology
2019-2022
Abstract Al 2 O 3 /Al 6 Ti 13 composite ceramics with low thermal expansion properties are promising for the rapid preparation of large-scale and complex components by directed energy deposition-laser based (DED-LB) technology. However, wider application DED-LB technology is limited due to inadequate understanding process conditions. The shaping quality, microstructure, mechanical (6 mol% TiO ) were systematically investigated as a function input in an extensive window. On this basis,...
Abstract Melt-grown alumina-based composites are receiving increasing attention due to their potential for aerospace applications; however, the rapid preparation of high-performance components remains a challenge. Herein, novel route 3D printing dense (< 99.4%) melt-grown alumina-mullite/glass using directed laser deposition (DLD) is proposed. Key issues on composites, including phase composition, microstructure formation/evolution, densification, and mechanical properties, systematically...
Abstract Directed laser deposition (DLD) is a new method for rapidly preparing melt‐grown ceramics, but cracking problem greatly limited its application. In this study, behavior of Al 2 O 3 ceramics was suppressed by doping ZrO . Crack suppression mechanism in also analyzed. Process parameters which are prone to generating cracks were adopted the experiments, and they contribute showing crack clearly. Results show that has remarkable effects. It most obvious when content 37 mol%. Compared...
摘要: 熔体自生陶瓷因具有接近熔点的超高温性能而成为两机系统热端部件重要的候选高温结构材料之一。熔池凝固条件对熔体自生陶瓷的微观组织及力学性能影响显著,而工艺条件则是调控凝固条件的重要手段。然而,目前关于工艺条件对直接激光沉积熔体自生陶瓷影响规律的研究尚不充分。为此,利用该技术制备了熔体自生Al2O3/Al6Ti2O13陶瓷,研究了层间提升量对Al2O3/Al6Ti2O13陶瓷成形质量的影响。结果表明,凝固陶瓷主要由α-Al2O3和Al6Ti2O13相组成,占主要体积分数的α-Al2O3相弥散分布于连续的Al6Ti2O13基体相中。由于凝固条件的改变,α-Al2O3相尺寸随层间提升量的增加逐渐降低且其形态逐渐由胞状枝晶向等轴枝晶转变。层间提升量处于0.4~0.6 mm范围内时凝固陶瓷具备精细的微观组织及优异的综合性能,是较好的工艺窗口。