Introducing MnO2 and ZnO Additives for the Development of Alumina–Mullite–Zirconia Composites

JOM ◽  
2021 ◽  
Author(s):  
Hudsa Majidian ◽  
Mohammad Farvizi ◽  
Leila Nikzad
Keyword(s):  
Author(s):  
Tomasz Sadowski ◽  
Kamil Łosiewicz ◽  
Marek Boniecki ◽  
Magdalena Szutkowska

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

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.


1986 ◽  
Vol 69 (3) ◽  
pp. 268-269 ◽  
Author(s):  
QI-MING YUAN ◽  
JIA-QI TAN ◽  
JI-YAO SHEN ◽  
XUAN-HUI ZHU ◽  
ZHENG-FANG YANG
Keyword(s):  
Sol Gel ◽  

2016 ◽  
Vol 42 (1) ◽  
pp. 1105-1113 ◽  
Author(s):  
Acacio Rincón ◽  
Rodrigo Moreno ◽  
Adriana S.A. Chinelatto ◽  
Carlos F. Gutierrez ◽  
María Dolores Salvador ◽  
...  

2008 ◽  
Vol 19 (6) ◽  
pp. 2437-2444 ◽  
Author(s):  
Y. Nayak ◽  
R. P. Rana ◽  
S. K. Pratihar ◽  
S. Bhattacharyya

2019 ◽  
Vol 7 (1) ◽  
pp. 2085-2092
Author(s):  
Sumittra Charojrochkul ◽  
Suda Wannakitti ◽  
Pimpa Limthongkul ◽  
Johji Ueda ◽  
Kazunori Sato

1993 ◽  
Vol 11 (4) ◽  
pp. 309-313 ◽  
Author(s):  
J. Mullot ◽  
J.P. Lecompte ◽  
L. Montanaro ◽  
A. Negro

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