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Ceramic materials more stable for hostile environments are those with the perovskite structure.
Materials and Methods We selected powders SrCO3, MgO and WO3.
Aldus science and technology series, Aldus Books Inc., Menlo Park, Califórnia1968
Lazor: Journal of Molecular Structure Vol. 971 (2010), p. 18
Tyagi: Materials Research Bulletin Vol. 41 (2006), p. 674.

Kim: Journal of Analytical and Applied Pyrolysis.
Zhang: Chemical Engineering Journal.
Krause: Journal of Molecular Catalysis A: Chemical.
Triantafyllidis: Chemical Engineering Journal.
Øye: Microporous and Mesoporous Materials.

The damage value is different in the same loading mode for the two materials according to linear damage rule.
The exponent can be interpreted as material's sensitivity to variable-amplitude stress history.
It shows that loading mode affect the damage value greatly for different materials.
Acknowledgments: The authors acknowledge financial support for this work, in part from Brain Korea 21 Program at Pohang University of Science and Technology, in part from National Natural Science Foundation of China (project No.19872049, 10272080) and the Teaching and Research Award Program for Outstanding Young Teachers in Higher Education Institutions of MOE.
Journal of Applied Mechanics, 1945, 67: A159 [2] S.S.

An Artificial Immune Algorithm Based Intelligent Monitoring System in Grinding Process Zhijun Lv1,2, a, Qian Xiang2,b and Jingzhu Pang2,c 1 Key Laboratory of Textile Science & Technology, Ministry of Education, Donghua University, Shanghai, P.
Grinding is widely used as a precision process for machining difficult-to-cut materials.
Introduction Grinding is still widely used as a precision process for machining difficult-to-cut materials.
To detect and eliminate the nonself materials that originate from inside or outside, an immune system must possess the functions of distinguishing self and nonself materials (antigens).
Qu, et al, A wavelet-based methodology for grinding wheel condition monitoring, International Journal of machine tools & manufacture, 47(1), 2007: pp.580-592

Lin: submitted to Journal of Forensic Sciences (2010)
Lin: Key Engineering Materials Vol.443 (2010), p. 631-636
Lin: Advanced Materials Research Vol. 55-57 (2008), p.429-432
Lin: Advanced Materials Research Vol. 55-57 (2008), p.417-420
Lin: Advanced Materials Research Vol. 55-57 (2008), p.401-404.

With the development of science and technology, the request of the performance of accelerometers is increasingly higher and the precision of reference directly affects the performance of accelerometers.
The ratio R1/R4 is temperature-dependent due to different types of materials.
An even better material is high ploysilicon (lightly-doped polysilicon), since it has a negative TC.
Thus, the resistors of R2, R4 are implemented by high ploysilicon material.
Yu: A High-PSRR CMOS Bandgap Reference Without Resistor, Journal of Semiconductors(2008), p. 29(8)

Electronics and Science Institute of Applied Science and Technology Harbin University of Science and Technology Harbin, China asongmingxin@126.com bwuruiguaiguai19@163.com cliuqian0428@126.com dwanghong@hrbust.edu.cn ecaozuobao@sina.com.cn fcmh.007@163.com gyinjinghua1@126.com Keywords: RF-MEMS Switch; Dielectric Charging; Lifetime; Abstract.
The simulation results show that lifetime can reach 1000 hours when elastic coefficient (K) adopts 4-16N/m, Si3N4 as dielectric material, 0.4-1μm of dielectric thickness, 2-5μm of plate distance, less than 20V of driven voltage.
Acknowledgement This work is supported by Science and Technology Research Project of Education Department of Heilongjiang Province (Grant No. 12511076).
International Journal of Solids and Structures, 2011, 37: 29-43

Study on the Mechanical Property of Cu-filled Isotropically Conductive Adhesive/SiO2 Composites Jianhua Zhong1,a, Zhihong Li1,b, Lingyu Ou-Yang1 1Faculty of Materials and Chemical Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China.
So the composites filled with the SiO2 powders exhibited excellent strength than the conventional materials.
When the materials were stretched, the silver streaks would transform into cracks further.
Because of this special structure, the strength of the materials enhanced effectively.
Kang: Journal of Metals and Materials.Vol.5 (1999),P.545-549

To lower the cost of raw materials, Mohammad Sharifi et al. [5] synthesized the Al2O3-TiB2 composites using Al, TiO2 and B2O3 instead of the expensive raw materials Ti and B according to the reaction: 2Al + 3TiO2 + 3B2O3 = 5Al2O3 (71 wt.%)+ 3TiB2 (29 wt.%) (2) ΔH= -2710 kJ/mol The composite also showed very good thermal stability as indicated by the retention of nanometer-sized particles of Al2O3 and TiB2 phases on annealing the composite powder at 1473K for 1h.
Experimental procedure Commercial available powders of aluminum powder (Al, 99% purity), Titanium dioxide (TiO2, 99% purity), boric oxide (B2O3, 99% purity) and nickel powder (Ni, 99% purity) were used as raw materials.
Progress in Materials Science 46 (2001) 1-184
Progress in Materials Science 58 (2013) 383–502
Conf. on Composite Materials, ICCM-10, vol.

At present, the study of the behavior of metal materials corroded by sludge has not been reported [5, 6].
Materials and instruments Experimental materials include distilled water, absolute alcohol, dilute sulfuric acid, manicipal sludge, and A3 carbon steel.
Fig.3 (d) and fig.3 (e) show that the main corrosion product of A3 carbon steel after experiments of different sludge pH is porous substance and bulk materials.
The element type of loose materials in fig.3(c) is few and the oxygen content is low, which indicates that its oxidation degree is less than corrosion product in fig.3 (b).
References [1] Zhang Peng, Luo Yuanjun, Gong Min, et: submitted to Journal of Sichuan University of Science & Engineering (Natural Science Edition)(2011) (In Chinese) [2] Gao Wei, Cao Jinzhen: submitted to China wood industry(2010)(In Chinese) [3] Wang Liyuan, Wang Xiutong, Sun Haofen, et: submitted to Equipment Environmental Engineering(2011)(In Chinese) [4] Zhang Zhen, Hu Fangfang, and Zhang Yuzhen: submitted to Science Technology and Engineering(2011) (In Chinese) [5] Xu Chengwei, Peng Xiao, Yan Jun, et: submitted to Corrosion Science and Protection technology(2008) (In Chinese) [6] Cui Zhifeng, Han Yichun, Zhuang Lijian, et: submitted to Corrosion & Protection in Petrochemical Industry(2011)(In Chinese)