In-situ Growth of Mullite Whiskers and their Effect on the Microstructure and Properties of Porous Mullite Ceramics with an Open/Closed Pore Structure

2021 ◽  
Author(s):  
Zichun Yang ◽  
Feiyue Yang ◽  
Shuang Zhao ◽  
Kunfeng Li ◽  
Jun Chen ◽  
...  
Keyword(s):  
Pore Structure ◽  
In Situ Growth ◽  
Microstructure And Properties ◽  
Porous Mullite ◽  
Mullite Whiskers ◽  
Closed Pore ◽  
Mullite Ceramics

Microstructure and properties of lightweight fibrous porous mullite ceramics prepared by vacuum squeeze moulding technique

2016 ◽  
Vol 42 (13) ◽  
pp. 14843-14848 ◽  
Author(s):  
Rubing Zhang ◽  
Changshou Ye ◽  
Xiaobo Hou ◽  
Shaohua Li ◽  
Baolin Wang
Keyword(s):  
Microstructure And Properties ◽  
Porous Mullite ◽  
Mullite Ceramics

Preparation of self-reinforcement of porous mullite ceramics through in situ synthesis of mullite whisker in flyash body

2012 ◽  
Vol 38 (2) ◽  
pp. 1027-1032 ◽  
Author(s):  
Shihui Li ◽  
Haiyan Du ◽  
Anran Guo ◽  
Hai Xu ◽  
Duo Yang
Keyword(s):  
In Situ Synthesis ◽  
Porous Mullite ◽  
Mullite Ceramics

Preparation of porous mullite ceramics consisting of needle-like mullite whiskers

2021 ◽  
pp. 1-5
Author(s):  
Qi Zhang ◽  
Qu Wang ◽  
Binbin Dong ◽  
Gang Wang ◽  
Bo Yuan ◽  
...  
Keyword(s):  
Porous Mullite ◽  
Mullite Whiskers ◽  
Mullite Ceramics

Epitaxial growth manner and structure of superconducting oxide films

1990 ◽  
Vol 48 (4) ◽  
pp. 2-3
Author(s):  
Yoshichika Bando ◽  
Takahito Terashima ◽  
Kenji Iijima ◽  
Kazunuki Yamamoto ◽  
Kazuto Hirata ◽  
...  
Keyword(s):  
Ultrathin Films ◽  
Film Surface ◽  
High Energy ◽  
Epitaxial Films ◽  
Layer By Layer ◽  
Initial Growth ◽  
In Situ Growth ◽  
High Quality ◽  
Activated Reactive Evaporation

The high quality thin films of high-Tc superconducting oxide are necessary for elucidating the superconducting mechanism and for device application. The recent trend in the preparation of high-Tc films has been toward “in-situ” growth of the superconducting phase at relatively low temperatures. The purpose of “in-situ” growth is to attain surface smoothness suitable for fabricating film devices but also to obtain high quality film. We present the investigation on the initial growth manner of YBCO by in-situ reflective high energy electron diffraction (RHEED) technique and on the structural and superconducting properties of the resulting ultrathin films below 100Å. The epitaxial films have been grown on (100) plane of MgO and SrTiO, heated below 650°C by activated reactive evaporation. The in-situ RHEED observation and the intensity measurement was carried out during deposition of YBCO on the substrate at 650°C. The deposition rate was 0.8Å/s. Fig. 1 shows the RHEED patterns at every stage of deposition of YBCO on MgO(100). All the patterns exhibit the sharp streaks, indicating that the film surface is atomically smooth and the growth manner is layer-by-layer.

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