Haiyan Du
Tianjin University
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Featured researches published by Haiyan Du.
RSC Advances | 2014
Shan Liu; Jiachen Liu; Haiyan Du; Feng Hou; Sue Ren; Haitao Geng
Mullite fibres/whiskers frameworks (MF/MW frameworks) were prepared by mixed-slurry-filtration and heat-treating. Hierarchical fibres/whiskers structure formed in the frameworks through fluorine-catalyzed gas-phase reaction. Topaz rods as a transient product first formed in the frameworks, and then gradually transformed into mullite whiskers. Intersected mullite whiskers served as lap-jointing points of the fibres. The volume density, apparent porosity and thermal conductivity of the samples heat-treated at 1100–1500 °C were 0.402–0.541 g cm−3, 81.2–85% and 0.1191–0.1647 W m−1 k−1, respectively. Cyclic compression–resilience performance (maximum stress = 0.4 MPa) of the samples was tested at room temperature. The compression ratio, permanent deformation ratio and resilience ratio of the samples in the first circle compression–resilience test were 2.031–3.833%, 0.125–0.042% and 93.85–98.28%, respectively. The excellent thermal/mechanical properties indicated that the MF/MW frameworks were suitable for being applied as high temperature heat-insulation/sealing materials.
RSC Advances | 2014
Mingchao Wang; Jiachen Liu; Haiyan Du; Feng Hou; Anran Guo; Yingna Zhao; Jing Zhang
In this paper, SiC was bonded with a phosphate inorganic adhesive prepared from H3PO4 and Al(OH)3 as the matrix and Si and B4C as the inorganic fillers. The properties of the obtained adhesive were analyzed by XRD, TG-DSC, IR, shear strength tests and SEM. The results showed that the phosphate adhesive exhibited outstanding heat-resistant properties and excellent bonding strength. The addition of B4C could greatly improve the adhesives mechanical properties due to the formation of borosilicate glass and the volume compensation came from B4Cs oxidation. The shear strength of bonded specimens could be up to about 10 MPa after heat treatment at 1300 °C, attributed to the generation of mullite and borosilicate as well as the reasonable compensation for the adhesives volume.
Journal of The European Ceramic Society | 2013
Zhenguang Hou; Haiyan Du; Jiachen Liu; Ruihua Hao; Xue Dong; Mengxia Liu
Ceramics International | 2012
Shihui Li; Haiyan Du; Anran Guo; Hai Xu; Duo Yang
Ceramics International | 2013
Zhenguang Hou; Jiachen Liu; Haiyan Du; Hai Xu; Anran Guo; Min Wang
Composites Science and Technology | 2014
Xue Dong; Guofa Sui; Jiachen Liu; Anran Guo; Sue Ren; Mingchao Wang; Haiyan Du
Ceramics International | 2012
Caifen Wang; Jiachen Liu; Haiyan Du; Anran Guo
Ceramics International | 2014
Mingchao Wang; Jiachen Liu; Haiyan Du; Feng Hou; Anran Guo; Shan Liu; Xue Dong
Journal of Alloys and Compounds | 2015
Mingchao Wang; Jiachen Liu; Haiyan Du; Anran Guo; Xin Tao; Xue Dong; Haitao Geng
Ceramics International | 2012
Hai Xu; Jiachen Liu; Anran Guo; Haiyan Du; Zhengguang Hou