Effect of alumina fiber content on pore structure and properties of porous ceramics

2018 ◽  
Vol 16 (2) ◽  
pp. 814-819
Author(s):  
Ying Lang ◽  
Lin Zhao ◽  
Xin Dai ◽  
Chang‐An Wang
Keyword(s):  
Pore Structure ◽  
Porous Ceramics ◽  
Fiber Content ◽  
Structure And Properties ◽  
Alumina Fiber

Fabrication of Porous Al2O3 Ceramics by Freeze Drying Technique and Annealing Treatment

2016 ◽  
Vol 848 ◽  
pp. 272-278 ◽  
Author(s):  
Sha Qiu ◽  
Yu Fei Tang ◽  
Kang Zhao
Keyword(s):  
Compressive Strength ◽  
Pore Structure ◽  
Pore Size ◽  
Annealing Time ◽  
Open Porosity ◽  
Sucrose Solution ◽  
Annealing Treatment ◽  
Porous Ceramics ◽  
Crystalline Solid ◽  
Directional Freezing

Porous Al2O3 ceramics were fabricated by directional freezing and low pressure drying with sucrose solution as the cryogenic medium. The pore structure of the porous ceramics was changed by annealing in the environment of higher than the glass transition temperature of sucrose solution after directional freezing because of changing the size and distribution of crystalline solid. The effects of the annealing time on the pore structure, open porosity and mechanical property of porous ceramics were investigated. The results showed that the pore size of porous ceramics increased substantially with the increase of annealing time. The open porosity of porous ceramics changed slightly with the increase of annealing time, while the compressive strength of porous ceramics showed a trend of decrease. The pore size range of porous Al2O3 ceramics fabricated is from 6.0μm to 110.2μm, the range of porosity was 40.35%-64.58%, the compressive strength range of porous Al2O3 ceramics was from 25.9MPa-126.6MPa. The porous Al2O3 ceramics with different pore structure can be obtained by changing the annealing time.

Porous Ceramics Including Fibrous Insulation, Structure and Properties of

2016 ◽  
pp. 346-348
Author(s):  
Manabu Fukushima ◽  
Tatsuki Ohji ◽  
Paolo Colombo ◽  
Yu-ichi Yoshizawa
Keyword(s):  
Porous Ceramics ◽  
Structure And Properties ◽  
Fibrous Insulation

scholarly journals Pore structure and properties of porous geopolymer based on pre-swelled bentonite

2020 ◽  
Vol 254 ◽  
pp. 119226
Author(s):  
Ying Yang ◽  
Jun Jiang ◽  
Li Hou ◽  
Zhongyuan Lu ◽  
Jun Li ◽  
...  
Keyword(s):  
Pore Structure ◽  
Structure And Properties

Comparison of Porous Ti6Al4V Made by Sponge Replication and Directly 3D Fiber Deposition and Cancellous Bone

2007 ◽  
Vol 330-332 ◽  
pp. 999-1002 ◽  
Author(s):  
J.P. Li ◽  
J.R. Wijn ◽  
Clemens A. van Blitterswijk ◽  
K. de Groot
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Pore Structure ◽  
Cancellous Bone ◽  
Structure And Properties ◽  
Porous Ti ◽  
Fiber Deposition ◽  
Regular Open

The present investigation gives a comparison of the structure and properties of porous Ti6Al4V made by sponge replication (Sponge Ti) and directly 3D fiber deposition (D3DF Ti) and cancellous bone. Although the macrostructure of these two materials differs, their microstructure seems to be similar. Both scaffolds reveal an open pore structure, while D3DF Ti shows a fairly regular open pore structure, sponge Ti6Al4V exhibit an irregular open pore structure similar to that of cancellous bone. The mechanisms resulting in mechanical properties like stiffness or strength are, accordingly, different. The compressive strength and E’ modulus of Ti6Al4V scaffold are higher than that of cancellous bone,. The permeability results show both Ti6Al4V scaffolds are quite comparable with cancellous bone.

scholarly journals Effects of Pore Structure on the Sound Absorption Property of Porous Ceramics Fabricated by In-Situ Solidification Technique Using Agar

2009 ◽  
Vol 34 (1) ◽  
pp. 117-120 ◽  
Author(s):  
Takashi Shirai ◽  
Takeaki Kato ◽  
Yohei Endo ◽  
Hideo Watanabe ◽  
Masayoshi Fuji ◽  
...  
Keyword(s):  
Pore Structure ◽  
Sound Absorption ◽  
Porous Ceramics ◽  
Absorption Property

scholarly journals SYNTHESIS OF STRUCTURES OF CELLULAR-CONCRETE COMPOSITES WITH NANOSIZED COMPONENTS

Vestnik MGSU ◽  
2017 ◽  
pp. 733-740
Author(s):  
Valentina Anatol'yevna Solonina ◽  
Galina Alexandrovna Zimakova ◽  
Dmitriy Sergeevich Baianov ◽  
Pavel Valer'evich Sharko ◽  
Marina Petrovna Zelig
Keyword(s):  
Mechanical Properties ◽  
Portland Cement ◽  
Pore Structure ◽  
Physical And Mechanical Properties ◽  
Structure And Properties ◽  
Integrated Research ◽  
High Calcium ◽  
Nanopore Structure ◽  
Matrix Stone ◽  
Cellular Concrete

The article reveals the results of one of the stages of the integrated research studying the influence of compounds and disperse characteristics of silica-containing materials on structure formation and qualities of cellular concrete. It has been indicated that the improvement of physical and mechanical properties of cellular concrete can be achieved through creating the best possible pore structure of the concrete and the structure of interporous frame as well as intensification of hydration and crystallization processes under hydrothermal treatment and, as a result, the increase in number and perfecting morphology of hydrated phases. Up-to-date knowledge about the structure and properties of cellular concrete shows potential capacities to enlarge strength characteristics through forming a nanopore structure of a matrix stone, the effective usage of power potential of multicomponent binding including Portland cement, high-calcium lime, activate silica components with grains of submicron and nanometer range.

scholarly journals Tailoring pore structure and properties of waste-derived ceramic foams for lightweight construction

RSC Advances ◽  
2019 ◽  
Vol 9 (62) ◽  
pp. 36308-36315 ◽  
Author(s):  
Congcong Jiang ◽  
Shifeng Huang ◽  
Xiuzhi Zhang ◽  
Xin Cheng
Keyword(s):  
Pore Structure ◽  
Coal Gangue ◽  
Structure And Properties ◽  
Lightweight Construction ◽  
Ceramic Foams ◽  
Waste Coal

Ceramic foams (CFs) are manufactured by recycling granite waste, coal gangue, and cullet.

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