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However, due to the high hardness (Mohs 9) and stable chemical properties, sapphire crystal belongs to the category of difficult materials.
[9] B H Lv, J L Yuan, Y X Yao, Z W Wang, Materials Science Form, 532(2006): 460-463
[10] J Y Choi, H D Jeong, International Journal of Machine Tools and Manufacture, 44(2004): 1163-1169
[13] J B Wang, Y W Zhu, J S Wang, J Xu, D W Zuo, Journal of Synthetic Crystals, 2014, 43(2014):1099-1104
[16] Z C Lin, W S Huang, J S Tsai, Journal of Mechanical Science and Technology, 26(2012): 2353-2364

International Journal of Applied Ceramic Technology, 2010. 7(1): p. 30-40
Digest Journal of Nanomaterials and Biostructures, 2012. 7(1): p. 33-39
Journal of Chemistry, 2013. 1: p. 1-7
Journal of Alloys and Compounds, 2009. 484: 263-267
Journal of Sol-Gel Science and Technology, 2016. 80(2): p. 259-266.

Influence of Matrix Aggregates Particle Size Grades on Properties of Grouting Material for Blast Furnace Xiujuan Pei1,a, Zhifa Wang1,b, Ruisheng Wang1,c 1Hebei Province Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, Hebei United University, Tangshan 063009 P.R.
Be able to combine with existing lining materials properly.
Raw Materials for Matrix Aggregates and Recipe.
Base on the raw materials’ essential features and matrix aggregate’s characteristic requirement, raw materials and their proportions are decided as follows: silica carbide 67.67%, quartz 26.50%, alumina 4.37% and graphite 1.46%.
References [1] Xiujuan Pei and Ruisheng Wang: Advanced Materials Research Vol. 295-297 (2011), p.359 [2] Shubin Ren, Xinbo He, Xuanhui Qu, Islam S.Humail and Yanping Wei: Journal of University of Science and Technology Beijing Vol. 15 (2008), p. 297 [3] Mingyi Zheng, Kun Wu, Zhongkai Yao, Tatsuo Sato, Hiroyasu Tezuka and Akihiko Kamio: Trans.

Studied Material Studied materials are concretes which composition is shown in the Table 1.
Konvalinka, Physical and Mechanical Properties of Composites Made with Aluminous Cement and Basalt Fibers Developed for High Temperature Application, Advances in Materials Science and Engineering, Article ID 703029, 2015
Černý, Treated Coconut Coir Pith as Component of Cementitious Materials, Advances in Materials Science and Engineering, Article ID 264746, 2015
Černý, Free water intake as means of material characterization, Journal of Building Physics 33 (2009) 29-44
Kumaran, Moisture diffusivity of building materials from water absorption measurements, Journal of Thermal Envelope and Building Science 22 (1999) 349-355

While the transparency of ceramic materials is affected by many factors, such as material thickness, crystal structure and firing number and so on, and ceramic materials have determinate translucency.
Materials and Methods Materials.
Empress II materials were made into samples of 0.8mm thickness.
Each group of samples was made according to the operating manual, and each color group had 3 circle samples (378 Journal of Oral Science Research, Aug. 2005, Vol. 21, No. 4) which diameter was 15 mm.
Acknowledgements This work was supported by the National Natural Science Foundation of China (No.50872152) andBeijing Science and Technology Project (No.

Introduction Many porous materials, such as filter materials made of sintering metals, lagging materials, fireproof materials and so on, are utilized for various fields.
The authors[5,6] also have dealt with statical problems and dynamical ones of axisymmetrical shells made of porous materials.
And the authors[7,8] also have dealt with dynamical problems of axisymmetrical thin shells made of the multi-layered porous materials and the functionally porous materials.
Gonda et al.: Key Engineering Materials Vols. 407-408(2009), p. 305
Houbolt: Journal of Aeronautical Science Vol. 17, No. 9(1950), p. 540.

The inverse problem is an important interdisciplinary subject, which receives more and more attention in the fields of mathematics, computer science, information science and other applied natural sciences in recent years.
The increasing use of high performance computing technology to solve practical problems in scientific research and production, research, applications involving nuclear materials for nuclear weapons storage simulation, oil exploration, biological information technology, medical and drug research, computational chemistry, meteorology, weather and disaster forecasting, industrial process improvement and environmental protection and many other fields of high performance calculation [12].
Acknowledgement Fund Project: Supported by the Key Project of National Science of Department of Education of Sichuan(12ZA177), Young Project of National Science of Department of Education of Sichuan (11ZB028), Application infrastructure project of office of science and technology in Sichan province(010JY0151), Support project of science and technology in Sichan province(2012GZ0020).
Chinese Journal of Geophysics, Vol.52(3),(2009),p.704-715 [12] Zhao Yi , Zhu Peng , Chi Xuebin etc.
Journal of Computer Research and Development, Vol. 44(10),(2007),p.1640-1646 [13] Information on http://tieba.baidu.com/f?

Materials and Methods Materials.
Specification of Materials.
Construction and Building Materials.
Construction and Building Materials.
Journal of Adhesion Science and Technology.

The material had good blood compatibility, and can be used as biomedical materials.
Introduction As long with enhancing awareness and promoting uses of CS/ECOPU composite materials, CS/ECOPU composite materials have received extensive attention, which has brought an unprecedented development to the research of biomaterial community.
Figure 3 showed recalcification time of materials.
Journal of Applied Polymer Science, 2007, 104: 2683～2689 ［ ］2 Wen-Ching Lin, Da-Guang Yu, Ming-Chen Yang.
Journal of Membrane Science, 2006, 276: 68～80

Intermittent Drying of Porous Materials: A Review CM.
Abstract: Hygroscopic materials can suffer variations in water content and temperature according to ambient air conditions.
For certain materials, much of the resistance to drying process resides in its interior.
The authors concluded that intermittent drying can be recommended, particularly for drying of materials which have a tendency to crack during drying, for example, ceramic and wood.
Pawłowski: Chemical Engineering Science. 66 (2011)1893-1905