scholarly journals Effect of micron aluminium powder on mechanical properties and microstructural in zirconia toughened alumina ceramics

2020 ◽  
Vol 15 (10) ◽  
pp. 684-687
Author(s):  
Ruihao Zhang ◽  
Bao Qi ◽  
Jie Wang ◽  
Xinwei She ◽  
Zhende Ran ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Alumina Ceramics ◽  
Aluminium Powder ◽  
Zirconia Toughened Alumina

scholarly journals Preparation, mechanical properties, and toughening mechanisms of SiCw/SiCp‐reinforced zirconia‐toughened alumina ceramics

2020 ◽  
Vol 17 (5) ◽  
pp. 2083-2093
Author(s):  
Longyang Liu ◽  
Xianzhi Chen ◽  
Qiyu Li ◽  
Shuaifeng Chen ◽  
Yongjun Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Alumina Ceramics ◽  
Toughening Mechanisms ◽  
Zirconia Toughened Alumina

Influence of Zirconia Content and Grain Size on Physical and Mechanical Properties of Zirconia Toughened Alumina Ceramics

2011 ◽  
Vol 143-144 ◽  
pp. 485-488 ◽  
Author(s):  
Bao Yu Du ◽  
Bo Zhao ◽  
Tie Lin Duan
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Physical And Mechanical Properties ◽  
Composite Ceramic ◽  
Alumina Ceramics ◽  
Alumina Matrix ◽  
Zirconia Toughened Alumina ◽  
Better Than ◽  
Zirconia Content

Physical and mechanical properties as well as microstructure of zirconia toughened alumina ceramics with different zirconia content were tested. The results show that the best physical and mechanical properties are obtained in sub-micron composite ceramic when zirconia content is 25%; while the physical and mechanical properties of nano-zirconia toughened alumina ceramics are far better than those of sub-micron zirconia toughened alumina ceramics. Therefore physical and mechanical properties of ceramics can be improved significantly by adding proper amount of zirconia into alumina matrix and refining zirconia particles.

Mechanical Properties of Hot Isostatically Pressed Zirconia-Toughened Alumina Ceramics Prepared from Coprecipitated Powders

1993 ◽  
Vol 76 (10) ◽  
pp. 2677-2680 ◽  
Author(s):  
Yosuke Matsumoto ◽  
Ken Hirota ◽  
Osamu Yamaguchi ◽  
Suguru Inamura ◽  
Hiroki Miyamoto ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Alumina Ceramics ◽  
Zirconia Toughened Alumina

Mechanical Properties of Zirconia Toughened Alumina Composites with TZP Partially Nanostructured Sintered by Liquid Fase

2008 ◽  
Vol 591-593 ◽  
pp. 436-440
Author(s):  
João Marcos K. Assis ◽  
Francisco Piorino Neto ◽  
Francisco Cristóvão Lourenço de Melo ◽  
Maria do Carmo de Andrade Nono
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Weibull Modulus ◽  
Bending Test ◽  
Sintering Aid ◽  
Zirconia Composites ◽  
Alumina Composites ◽  
Grain Size And Shape ◽  
Zirconia Toughened Alumina ◽  
Zirconia Powders

A comparative study between alumina added niobia ceramics and two alumina zirconia composites from nanostructured TZP (7% and 14% weight) was made. On this composites the zirconia were yttria stabilized and the alumina were submicron structured. As sintering aid a mixture of magnesia, niobia and talc were used on all samples. The sintering was performed at 1450 oC during 60 minutes. The characteristic grain size and shape of an alumina and zirconia powders, aggregates and agglomerates were characterized. The sintering ceramics were evaluated through hardness, fracture toughness and 4 point bending test. Weibull statistic was applied on the flexural results. Although the fracture toughness result from ZTA were lower, and seems to be affected by the liquid fase, the hardness and Weibull modulus were higher than alumina niobia. The grains size and the homogeneity of its distributions on the microstructure of this ceramics was correlated to these higher values. The results from these alumina zirconia composites showed a potential to apply as a ballistic armor material.

scholarly journals Evaluation of mechanical properties of porous alumina ceramics obtained using rice husk as a porogenic agent

Cerâmica ◽  
2019 ◽  
Vol 65 (suppl 1) ◽  
pp. 70-74 ◽  
Author(s):  
G. C. Ribeiro ◽  
B. A. Fortes ◽  
L. da Silva ◽  
J. A. Castro ◽  
S. Ribeiro
Keyword(s):  
Mechanical Properties ◽  
Rice Husk ◽  
Porous Alumina ◽  
Alumina Ceramics

Effect of TiO2 and MgO on Microstructure of α-Alumina Ceramics and its Sintering Behavior

2015 ◽  
Vol 1112 ◽  
pp. 519-523 ◽  
Author(s):  
Jarot Raharjo ◽  
Sri Rahayu ◽  
Tika Mustika ◽  
Masmui ◽  
Dwi Budiyanto
Keyword(s):  
Mechanical Properties ◽  
Sintering Temperature ◽  
Physical And Mechanical Properties ◽  
Basic Material ◽  
Sintering Behavior ◽  
Pressureless Sintering ◽  
Alumina Ceramics ◽  
Density Measurements ◽  
Technical Alumina ◽  
Platelet Structure

Observation on the effect of adding titanium oxide (TiO2) and magnesium oxide (MgO) on the sintering of α-alumina (Al2O3) has been performed. In this study, technical alumina used as basic material in which the sample is formed by the pressureless sintering/cold press and sintered at 1500°C which is lower than alumina sintering temperature at 1700°C. Elemental analysis, observation of microstructure, hardness, fracture toughness and density measurements were carried out to determine the physical and mechanical properties of alumina. The results indicate a change in the microstructure where the content of the platelet structure are much more than the equilateral structure. At sintering temperature of 1500°C, neck growth occurs at ceramics grain, supported by the results of the density test which indicate perfect compaction has occurred in this process.

Effects of Cr2O3 addition on the mechanical properties, microstructure and wear performance of zirconia-toughened-alumina (ZTA) cutting inserts

2012 ◽  
Vol 513 ◽  
pp. 91-96 ◽  
Author(s):  
Ahmad Zahirani Ahmad Azhar ◽  
Lee Chun Choong ◽  
Hasmaliza Mohamed ◽  
Mani Maran Ratnam ◽  
Zainal Arifin Ahmad
Keyword(s):  
Mechanical Properties ◽  
Wear Performance ◽  
Cutting Inserts ◽  
Zirconia Toughened Alumina
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