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Photoluminescence (PL) of a material gives information on the behavior of electrons and holes in the material because the PL occurs when the photo induced electron and holes recombines.
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Llopis, Photoluminescence decay and time-resolved spectroscopy of cubic yttria-stabilized zirconia, Applied Physics A: Materials Science & Processing, 59 (1994) 569-574
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Table 1 Different types of materials identification.
Generally, a crack propagating in the matrix has a tendency to deflect to regions with stiffer materials (particles).
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Journal of Materials Chemistry, 2011, 21(27):9938-9954
Nature Materials, 2011, 10(3):223-9
Advanced Functional Materials, 2018, 28(31)
Journal of Materials Chemistry A, 2017, 5(24)
Journal of Materials Chemistry A, 2018, 6, 2337

The traditional solutions are heat treatment for tool materials or wear-resistant coating for tools.
Specifically, it is not clear whether the magnetic field influences the mechanical and physicochemical processes occurring and/or the properties of the materials [7].
Koepke: Journal of Materials Processing Technology.
Klamecki: Journal of Materials Processing Technology.
Mei et.al: Journal of Materials Processing Technology.

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Designed for the automobile engine parts like connecting rod, a range of highly developed materials is considered rapidly solidified Al materials, powder making Ti materials, forged Ti alloys and reinforced composite materials [3, 4, 5].
Froes, Advanced metals for aerospace and automotive use, Materials Science and Engineering A, Vol.184, 1994, pp. 119-133 [6] T.H.
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Cimenoglu, Effect of magnesium addition on wear behavior of Al-70 vol. % Al2O3p Composites, Materials Science and Technology, Vol.19, 2003, pp. 949–954

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Preparation and Properties of Al2O3 Ceramic Reinforced Mo-based Composites by Al(NO3)3 Precursor Liujie Xu 1, a, Shizhong Wei1,b, Guoshang Zhang2, Jiwen Li2, Xiangdong Ma1, Baozhu Dai2 1 Henan Engineering Research Center for Wear of Materials, Henan University of Science and Technology, Louyang 471039, China 2 School of materials science and engineering, Henan University of Science and Technology, Louyang 471003, China awmxlj@126.com, bwsz@mail.haust.edu.cn Keywords: Molybdenum, Composites, Al (NO3)3, Al2O3, Property Abstract.
It is very important for the application of molybdenum in structural materials to research and develop new molybdenum alloys.
But ceramics exhibit poor toughness which restricts their application for structural materials.
Raw materials of experiment adopt analytically pure Al(NO3)3·9H2O (purity higher than 99.0%) and analytically pure MoO3 ( purity higher than 99.0%).
M.Molodets: High Pressure Res Vol. 25(2005), p211 [7] M.Nawa, T.Sekino and K.Niihara: Journal of Materials Science Vol. 29(1994), p3185 [8] Sheng-Chang Wang and Wen-Cheng J.Wei: Nanostructured Materials, Vol.10(1998), p983 [9] Liu Kaiqi, Pan Wei, Fan Zhenkun, et al.: Rare metal materials and engineering Vol. 36(2007), p238

Many studying results show that the confined pressure have an important impact on compressive mechanical properties of brittle materials as rock and concrete[8,9].
It is easy to study the materials’ mechanical performance by the active confined pressure, but the device of active confined pressure is also relatively more complex.
Acknowledgment This work was financially supported by National Natural Science Foundation of China (51104123) and  Science and Technology Support Item of Sichuan (2011GZ0064).
[5] Kang Y A,Zhang J Y.Uniaxial Compressive behavior of open-cell and closed-cell aluminum foams.Materials Review,Vol.19 (2005), p.122-124.
(In Chinese) [7] Shi S Q,Kang J G,Sui S B.Experimental study of quasi-static and dynamic compressive property of close-cell aluminum foam.Rare Metal Materials and Engineering, 2011，40(2)：150-154.Vol.26 (2006), p.46-52.

Experimental Materials.
King: Journal of Applied Polymer Science.
Nagai: Journal of Applied Polymer Science.
Tavman: Journal of Applied Polymer Science.
Yu: Diamond & Related Materials.