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纤维及界面反应对mullite/Al-4.0Cu-1.85Mg铝基复合材料时效行为的影响

采用挤压铸造方法制备mullite/Al 4.0Cu 1.85Mg铝基复合材料 ,用硬度测试 (HB)、差示扫描量热仪(DSC)和分析透射电镜 (ATEM)等手段 ,研究了复合材料及其基体合金的时效硬化特性、时效  (本文共4页) 阅读全文>>

《Journal of Wuhan University of Technology(Materials Science)》2019年05期
Journal of Wuhan University of Technology(Materials Science)

Preparation of Cordierite-mullite Ceramics for Solar Thermal Storage

We developed cordierite-mullite composite ceramic materials to package and encapsulate PCM, and presented a preparation process from raw materials of kaolin, talc and alumina. The properties and microstructre of cordierite-mullite composite ceramic were studied. Due to the strengthening effects of mullite, the sample C2(80 wt% of cordierite and 20 wt % of mullite) sintered at...  (本文共9页) 阅读全文>>

《Journal of Advanced Ceramics》2019年02期
Journal of Advanced Ceramics

Mechanical properties and thermal stability of carbon fiber cloth reinforced sol-derived mullite composites

For the wide application as thermal protection materials,it is very necessary for mullite ceramics to improve fracture toughness.In this paper,the laminated and stitched carbon fiber cloth preform reinforced mullite(C/mullite)composites were prepared through the route of sol impregnation and heat treatment using the Al_2O_3-SiO_2 sol with a high solid content as raw materials.The C/mullite composites showed a flexura...  (本文共10页) 阅读全文>>

《Journal of Advanced Ceramics》2019年03期
Journal of Advanced Ceramics

Detection of small delamination in mullite/Si/SiC model EBC system by pulse thermography

The pulse thermography(PT) technique was applied to the detection of the delamination of a multi-layered coating system composed of mullite/Si onto a reaction-bonded Si C substrate. The potential evaluation was carried out in order to detect internal delamination in multi-layered material system. Moreover, the observation of the cross sections and ...  (本文共10页) 阅读全文>>

《China's Refractories》2018年01期
China's Refractories

Impact of Bauxite on Performance and Structure of SiC-mullite Brick

SiC-mullite brick is widely used in the upper and lower transitional zones of cement rotary kilns,due to excellent thermal shock resistance,and abrasion resistance. The investigation of different bauxites was made on the performance and micro-structure of Si C-mullite brick,especially thermal shock resistance. In two batches of bricks(G1 and G2),and two grades of bauxites(L1 and L2),samples '...  (本文共4页) 阅读全文>>

《Progress in Natural Science:Materials International》2013年02期
Progress in Natural Science:Materials International

Effect of boehmite sol on the crystallization behavior and densification of mullite formed from a sol-gel precursor

Hybrid mullite sol was synthesized from an aqueous solution of aluminum nitrate (AN), aluminum isopropoxide (AIP) and tetraethylorthosilicate (TEOS), doped with boehmite sol with different ratios. Pressureless sintering of the xerogel was carried out at different temperatures in the presence of boehmite doping. The xerogel and sintered powder...  (本文共7页) 阅读全文>>