Mechanical Properties and Fabrication of Nanostructured Al2TiO5 Compound by Pulsed Current Activated Sintering

Title
Mechanical Properties and Fabrication of Nanostructured Al2TiO5 Compound by Pulsed Current Activated Sintering
Authors
강현수박현국도정만윤진국박방주손인진
Keywords
Compound; Nanostructure; Sintering; Al2TiO5; Mechanical properties
Issue Date
2012-11
Publisher
대한금속 . 재료학회지; Korean journal of metals and materials
Citation
VOL 50, NO 11, 817-822
Abstract
Nano powders of Al2O3 and TiO2 compounds made by high energy ball milling were pulsed current activated sintered for studying their sintering behaviors and mechanical properties. The advantage of this process is that it allows very quick densification to near theoretical density and inhibition of grain growth. Nano-structured Al2TiO5 with small amount of Al2O3 and TiO2 was formed by sintering at 1300℃ for 5 minute, in which average grain size was about 96 nm. Hardness and fracture toughness of the nano-structured Al2TiO5 compound with a small amount of Al2O3 and TiO2 were 602 kg/mm2 and 2.6 MPa.m1/2, respectively.
URI
http://pubs.kist.re.kr/handle/201004/44621
ISSN
17388228
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KIST Publication > Article
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