期刊
CERAMICS INTERNATIONAL
卷 42, 期 2, 页码 2370-2377出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.10.034
关键词
Sintering; Microstructure-final; Mechanical properties; Glass; Foaming process
资金
- National Natural Science Foundation of China [51172120]
- China Postdoctoral Science Foundation [2015M570094]
Lightweight and high-strength glass foams were fabricated from recycled glass powder by a novel green spheres hollowing technique. Utilizing green spheres could tailor the microstructure features and properties of the foams and reduce the sintering temperatures to 680-800 degrees C. The foaming process of the sample consists of six consecutive stages. The obtained glass foams show uniform structure and small cell size, with apparent density, porosity, thermal conductivity and compressive strength values of 0.129-0.229 g/cm(3), 91-95%, 0.055-0.077 W/m K and 0.85-5.92 MPa, respectively. In comparison to glass foams prepared via traditional methods, the obtained glass foams have exceptionally high mechanical strengths. The green spheres hollowing technique is a general, energy-saving and easy scale-up approach for the fabrication of inorganic foams. (C) 2015 Published by Elsevier Ltd and Techna Group S.r.l.
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