Thermal expansion and mechanical properties of self-reinforced aluminum titanate ceramics with elongated grains

2017 ◽  
Vol 37 (4) ◽  
pp. 1673-1680 ◽  
Author(s):  
Yutaka Ohya ◽  
Shu Yamamoto ◽  
Takayuki Ban ◽  
Makoto Tanaka ◽  
Satoshi Kitaoka
Keyword(s):  
Mechanical Properties ◽  
Thermal Expansion ◽  
Aluminum Titanate ◽  
Titanate Ceramics

The influence of different additives on microstructure and mechanical properties of aluminum titanate ceramics

2021 ◽  
Vol 47 (1) ◽  
pp. 1169-1176
Author(s):  
Weiwei Chen ◽  
Anze Shui ◽  
Qingliang Shan ◽  
Jiawei Lian ◽  
Cong Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Titanate ◽  
Microstructure And Mechanical Properties ◽  
Titanate Ceramics

Acoustic emission studies of low thermal expansion aluminum-titanate ceramics strengthened by compounding mullite

2007 ◽  
Vol 33 (5) ◽  
pp. 879-882 ◽  
Author(s):  
Teruaki Ono ◽  
Yosuke Sawai ◽  
Masayuki Ikimi ◽  
Seizo Obata ◽  
Osamu Sakurada ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Thermal Expansion ◽  
Aluminum Titanate ◽  
Low Thermal Expansion ◽  
Titanate Ceramics ◽  
Emission Studies

Mechanical Properties of Al2TiO5 Ceramics

2007 ◽  
Vol 336-338 ◽  
pp. 1417-1419 ◽  
Author(s):  
Chun Hong Chen ◽  
Hideo Awaji
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Fracture Strength ◽  
Stress Redistribution ◽  
Aluminum Titanate ◽  
Critical Feature ◽  
Thermal Anisotropy ◽  
Microstructure Observation ◽  
Structural Applications ◽  
Titanate Ceramics

Aluminum titanate ceramics (Al2TiO5) is a synthetic ceramic material of potential interest for many structural applications. A critical feature, which greatly limits the mechanical properties of polycrystalline Al2TiO5, is considerable intergranular microcracking, which occurs due to the high thermal anisotropy of individual grains. In this study, the temperature dependencies of mechanical properties were discussed along with the microstructure observation. Both of fracture strength and fracture toughness increased considerably with increasing the temperature. These phenomena were explained on the basis of the stress redistribution and unique microscopic feature on the fracture surface of aluminum titanate ceramics. The experimental results also revealed that the repeated heat treatments resulted in the change of fracture strength and fracture toughness due to the stress redistribution in the Al2TiO5 matrix.

Intragranular Porous Aluminum Titanate Ceramics with Low Thermal Expansion and High Strength Simultaneously

2010 ◽  
Vol 156-157 ◽  
pp. 1713-1716
Author(s):  
Gang Xu ◽  
Wan Bo He ◽  
Yi Qiang Li ◽  
Yong Gang Wang ◽  
Gao Rong Han
Keyword(s):  
Mechanical Property ◽  
Thermal Expansion ◽  
High Strength ◽  
Graphite Powder ◽  
Aluminum Titanate ◽  
Dilatometric Curve ◽  
Porous Aluminum ◽  
Low Thermal Expansion ◽  
Expansion Behavior ◽  
Titanate Ceramics

Intragranular porous aluminum titanate ceramics were prepared by using graphite powder as pore-forming agent and magnesium-doped aluminum titanate powder as starting material. FESEM was employed to observe the microstructure. In order to investigate the expansion behavior and mechanical property, the dilatometric curve and three-point flexural strength of the prepared aluminum titanate ceramics were measured respectively. The results demonstrate that because of the formation of the intragranular pores, the aluminum titanate ceramics are of low thermal expansion and high strength simultaneously.

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