Near-zero-shrinkage Al2O3 ceramic foams with coral-like and hollow-sphere structures via selective laser sintering and reaction bonding

2021 ◽  
Author(s):  
Ye Dong ◽  
Hongyi Jiang ◽  
Annan Chen ◽  
Ting Yang ◽  
Shuai Gao ◽  
...  
Keyword(s):  
Hollow Sphere ◽  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Reaction Bonding ◽  
Ceramic Foams ◽  
Al2o3 Ceramic

Preparation of high-porosity Al2O3 ceramic foams via selective laser sintering of Al2O3 poly-hollow microspheres

2020 ◽  
Vol 46 (4) ◽  
pp. 4240-4247 ◽  
Author(s):  
Shan-Shan Liu ◽  
Meng Li ◽  
Jia-Min Wu ◽  
An-Nan Chen ◽  
Yu-Sheng Shi ◽  
...  
Keyword(s):  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Hollow Microspheres ◽  
High Porosity ◽  
Ceramic Foams ◽  
Al2o3 Ceramic

scholarly journals Investigations of hollow sphere structures produced by selective laser sintering

Mechanik ◽  
2019 ◽  
Vol 92 (7) ◽  
pp. 439-441
Author(s):  
Kamil Cieplak ◽  
Tomasz Majewski
Keyword(s):  
Hollow Sphere ◽  
Computer Aided Design ◽  
Mechanical Energy ◽  
Selective Laser Sintering ◽  
Three Dimensional ◽  
Experimental Tests ◽  
Laser Sintering ◽  
Optimal Method ◽  
Sintering Additive ◽  
Three Dimensional Models

The research of hollow sphere structures as absorbers of mechanical energy is described. The first part of the article is devoted to the description of selective laser sintering additive technique as the optimal method of sample production in the case of laboratory tests. The next part presents the use of computer aided design to create parametric three-dimensional models. Next, the results of experimental tests in the conditions of quasi-static load are presented. Based on the collected data, a qualitative analysis of the structure deformation process was performed and final conclusions are presented.

Porous Al2O3 ceramics with spontaneously formed pores and enhanced strength prepared by indirect selective laser sintering combined with reaction bonding

2020 ◽  
Vol 46 (10) ◽  
pp. 15159-15166 ◽  
Author(s):  
Ye Dong ◽  
Hongyi Jiang ◽  
Annan Chen ◽  
Ting Yang ◽  
Tingting Zou ◽  
...  
Keyword(s):  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Reaction Bonding

Direct Fabrication of Bulk Nanostructured Ceramic from Nano-Al2O3 Powders by Selective Laser Sintering

2007 ◽  
Vol 329 ◽  
pp. 613-618 ◽  
Author(s):  
Li Da Shen ◽  
Y.H. Huang ◽  
Zong Jun Tian ◽  
Guo Ran Hua
Keyword(s):  
Selective Laser Sintering ◽  
Laser Sintering ◽  
X Ray Diffraction ◽  
Ceramic Powders ◽  
Technological Parameters ◽  
Bulk Materials ◽  
Al2o3 Ceramic ◽  
X Ray ◽  
Nanostructured Ceramic ◽  
Direct Fabrication

Nanostructured ceramic bulk materials were achieved from nano-Al2O3 ceramic powders via direct selective laser sintering (SLS). SLS as a non-traditional machining technology of Rapid Prototyping was introduced and compared with other ceramic forming technologies. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were applied to analyze the microstructure of the ceramic bulk materials. These results demonstrated that the nano-Al2O3 ceramic powders can be sintered into bulk materials maintained nanostructure with some technological parameters. It was found that the nanostructured ceramic bulk exhibited unique microstructure and was free formed rapidly by this sintering technology.

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