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In the fields of agriculture, animal husbandry, building materials, light industry, metallurgy and environmental protection, the light-burned magnesia has been widely used.
Journal of Hebei University of Science and Technology, No. 1(1988),p.17-25 [5] Qiyan Shan, Yue Zhang, He Yang, and Xiangxin Xue: Novel Calcining Process of Low-grade Magnesite [J].
Journal of Salt Lake Research, Vol. 7, No. 4, (1999), p. 49-54
Journal of Salt and Chemical Industry, Vol. 39, No. 1(2010), p. 7-10
Journal of Wuhan University of Science and Technology(Natural Science Edition)， No. 1(1985), P. 15-21

Journal of Intelligent Material Systems and Structures. 20 (2008) 39–49
Journal of Intelligent Material Systems and Structures, 19 (200) 1217–1228
Smart Materials and Structures, 13 (2004) 609–620
Smart Structures and Materials, 10 (2004) 820–831
Journal of Intelligent Material Systems and Structures, 21 (2010) 321–335

., Civil Engineering Faculty, University of Sciences and Technology Houari Boumediene, B.P 32 El Alia Bab Ezzouar, Algiers 16111 Algeria.
In this paper, a nondestructive technique is used as a tool to control cracks and microcracks in materials.
A simulation by a numerical approach such as the finite element method is employed to detect cracks in materials and eventually to study their propagation using a crucial parameter such as the stress intensity factor.
The nondestructive testing of materials became a tool impossible to circumvent for the improvement of quality (during the development) and of safety (at the time of the uniform), it relates to fields very diverse [3].
Seddiki; Stress Analysis during Crack-Crazing Patterns Interactions: A Mathematical Approach, International Journal of Key Engineering Materials, Vol. 345-346, pp. 1617-1620, 2007.

Materials and Methods 2.1.
One issue with materials used in 3D printing is that they don't have the same mechanical strength as more resistant materials [9].
Hammas, "Evaluation of Different Materials and Techniques Used for Repairing of Digital Denture Base," Al-Azhar Assiut Dental Journal, vol. 6, pp. 1-11, 2023
Lee, "Shear bond strength of provisional repair materials bonded to 3D printed resin," Journal of Dental Sciences, vol. 16, pp. 261-267, 2021
Helal, et al., "Impact of different surface treatments and repair material reinforcement on the flexural strength of repaired PMMA denture base material," Dental Materials Journal, vol. 39, pp. 471-482, 2020

Buehler studied the hyper-elasticity governing the dynamic fracture in brittle materials [5].
Yokogawa, Modeling of hydrogen embrittlement in single crystal Ni, Computational Materials Science, 30 (2004) 202-211
Farkas, Molecular dynamics simulations of stress-induced phase transformations and grain nucleation at crack tips in Fe, Modelling and Simulation in Materials Science and Engineering, 11 (2003) 745-753
Zhao, Atomistic simulation of crack cleavage and blunting in bcc-Fe, Materials Science and Engineering: A, 349 (2003) 29-35
Farzin, Effect of hydrostatic pressure on nano crystalline materials behavior, Journal of Nano Research, 18-19 (2012) 27-42

Silane coupling agents are capable of promoting bonds between two dissimilar materials.
As water attacks the bonds between materials and stimulates swelling, silane coupling agents provides adhesive force and water resistant bond between the materials.
Experimental Design Materials.
Hossain, and Mahbub Hasan (2011), Chemical Modification Effect on the Mechanical Properties of Coir Fiber, Engineering Journal, Volume 16 Issue 2, Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology, Bangladesh
Supri (2009), LDPE-Isophthalic Acid-Modified Egg Shell Powder Composites (LDPE/ESPI), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), 02600 Jejawi, Perlis, Malaysia, Journal of Physical Science, Volume 20, pg. 87-89.

Study on thermal and mechanical properties of natural rubber latex modified by trichlorobromomethane Xiaoxue Liao1,a, Shuangquan Liao1, Bing Tang2,b, Mingchao Luo1, Yanfang Zhao 1, Haisheng Tan1 1.College of Materials and Chemistry Engineering, Hainan University, Hainan China,570228; 2 Agrivultural Product Processing Research Institute, Chinese Academy of Tropoical Agricultural Sciences, Zhan jiang 524001,China;) aliaoxx26@163.com, btangice2003@163.com Keywords: natural rubber latex, trichlorobromomethane,thermal property Abstract.
Experimental Materials.
Journal of Applied Polymer Science, Vol.109, 1395–1402 (2008)
Journal of Applied Polymer Science, Vol.114, 2149–2160 (2009)
Journal of Applied Polymer Science, Vol. 105, 341–351 (2007)

A Fuzzy Adaptive Force Controller Design of Robotic Manipulators for Pick-and-Placing Thin Brittle Materials Chongdong He1,a, Haichen Qin1,b, Jiankui Chen1,c 1Room.C202, Advanced Manufacturing Building (EAST), Huazhong University of Science and Technology, Wuhan, 430074, P.R.
Unfortunately, GDL is a kind of brittle carbon-fiber material with low mechanical strength.
In addition, the above control strategies and methods are applied to the manipulator picking and placing the brittle material GDL.
Cooper, "Review and analysis of PEM fuelcell design and manufacturing", Journal of Power Sources, Vol.114, No.1(2003), p.32-53
JSME International Journal, Vol.46, No.3(2003), p.1091-1099

The relationship between quality factor and the regenerator packing material was analyzed, it is found that quality factor is increased monotonically with porous materials characteristic factor.
When other things are equal, the quality factor increases monotonically with the porous material characteristic factor.
Therefore, in order to obtain a high quality factor, choice of materials should be considered.
Acknowledgement This paper is supported by the National Natural Science Fund, People’ Republic of China (Project No. 51176143) Fig.1 Pressure and velocity in resonance tube Fig.2 Energy flow in thermoacoustic engine Fig.3 The relationship between quality factor and resonance frequency Fig.4 The relationship between quality factor and heat leakage conductivity rate（） Fig.5 The relationship between quality factor and irreversible factor（） Fig.6 The relationship between quality factor and porous material characteristic factor References [1] Feng Wu, Q Li., F Z Guo: Advance in thermoacoustic theory, Journal of Wuhan Institute of Technology, 2012,34(1):1-6
Huazhong University of Science and Technology.Wuhan, 2007

This device was used for measuring of the roughness parameters (Ra, Rz and Rmr) for all materials. [9], [12] This experiment deals with grinding materials for tools.
For all materials were used identical dimensions of workpiece 50mm x 50 mm x 10mm.
This trend applies to all tested materials of grinding grains and also for all materials, which were grinding.
MSE 2009: Proceedings of the Manufacturing Science and Education.
Surface layer microhardness changes with high-speed, The International Journal of Advanced Manufacturing Technology.