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The Selection and Application of Filling Material Based on Long-Term Strength of Backfill Body Bao Jie Fu 1 2.a Min Tu 1 2.b 1School of Energy and Safety, Anhui University of Science and Technology, Huainan 232001 2The Key Laboratory Of Coal mine Safety and High Efficiency Mining of cosponsored by Province and MOE, Anhui University of Science and Technology, Huainan 232001 aemail:bjfu@aust.edu.cn bemail:mtu@aust.edu.cn Keywords: Backfill body, Rheology, Long-term Strength, Support Resistance Abstract.
Acknowledgements This research is funded by National Natural Science Foundation of China (51074004), the National Key Technology R&D Program for the Eleventh Five-Year Plan (2007BAK28B02) and AUST Science Funds for Young Scholar (QN200811).
Chinese Journal of Rock Mechanics and Engineering, 2000, 19(5): 651–654
Rock mechanics and engineering [M].Beijing: Science Press,2009
Chinese Journal ofRock Mechanics and Engineering,2000,19(2):145-148.

Fernandes d Department of Materials Engineering, Instituto Superior Técnico, Av.
The results were obtained according to the methodology proposed by Srawley and Gross for monolithic ceramic materials.
Even for brittle materials, such as concrete, high stresses at the crack tip may cause some inelastic behaviour.
Fernandes: Assessment of Fracture Toughness in Ornamental Stones, International Journal of Rock Mechanics and Mining Sciences, Vol. 45(4) (2008), p.554 [2] D.J.
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The Effects of Sic Grain Size on Sic-Based Refractory Paints Ayda Khosravanihaghighi1,a and Mahmood Pakshir2,b 1 MSc student Shiraz University, school of engineering, department of Materials, Iran 2Assosiate prof, Shiraz University, school of engineering, department of Materials, Iran aaida.khosravani@aol.com, bpakshir@shirazu.ac.ir Keywords: SiC; Refractory Paint; Geopolymers; Ceramic Coatings Abstract.
[4] D.Chen, L.He, S.Shang, Study on aluminum phosphate binder and related Al2O3-SiC ceramic coating Submitted to Material Science and Engineering journal, Vol.348(1-2) (2003), p.29-35
[7] S.Wolfgang, Refractory Materials,Chap.2-3(1999), p.21-23,216-218,327-341
[16] D.Pernica, PNB.Reis, JAM.Ferreira, P.Louda, Effect of test conditions on the bending strength of geopolymer-reinforced composite submitted to Journal of Material Science ,Vol.45, (2010), p.744-9
[18] Ch.Panagiotopoulou, E.Kontori, Th.Perraki, G.Kakali, Dissolution of aluminosilicate minerals and by products in alkaline media submitted to Journal of Material Science , Vol.42 (2007), p.2697

The friction and wear behaviors of Al2O3/TiC ceramic tool materials were evaluated at temperature up to 800℃.
Materials and experimental procedures Monolithic Al2O3 was used as the baseline material.
Materials Technology.
Key Engineering Materials.
Journal of American Ceramic Society.

For materials obtained according to this method, the authors confirmed good catalytic properties in methanol decomposition [5,6].
This probably results in better catalytic properties for the nanocrystalline materials.
Bojar: Archives of Metallurgy and Materials (2007), 52, 321-327
Dumesic: Science (2003), 300, 2075-2077
Jensen: Chemical Engineering Science (2001), 56, 293-303

Which loess and fly ash collectively referred to as the main materials, cement, lime and gypsum are collectively referred to as auxiliary materials, main materials, auxiliary materials and admixtures collectively referred to as solid materials.
(3)the compressive strength of specimen is minimum with the weight ratio of auxiliary materials with solid material is 25% and achieve maximum while the ratio is 32%, therefore, the optimal range of the weight ratio of auxiliary materials with solid material is 30%~33%
The filling materials of no. 2 and 4 is gravity self-conveyor slurry and the filling materials of no. 8 and 9 is pump pressure conveying slurry
[3] Caizhi Zhao, Huaqiang Zhou and Jianbiao Bai:Journal of Liaoning Technical University Vol. 25 No. 6 (2006), p. 904.
[4] Feng Cui, Huaxing Zhang and Pengliang Liu:Coal Science and Technology Vol. 39 No. 2 (2011), p. 10.

References [1] Hua Lin, Huang Xinggao, Zhu Chundong: Theory and Technology of ring rolling (Machinery Industry Press, China, 2001) [2] Xu S G., Lian J C, Hawkyard J B: submitted to International Journal of Mechanical Sciences (1991)
[3] Wang M., Yang H, Sun Z C, etal: submitted to Journal of Materials Processing Technology (2009)
[4] Yang H, Wang M, Guo LG., Sun ZC: submitted to Computational Materials Science (2008) [5] Z.W.
Yang, eatl: submitted to Journal of Materials Processing Technology (2007) [6] Ho Keun Moon, Min Cheol Lee, Man Soo Joun: submitted to International Journal of Mechanical Sciences (2008)
[7] Nassir Anjami, Ali Basti: submitted to Journal of Materials Processing Technology (2010)

Journal of Materials in Civil Engineering, 2014. 26(2): p. 259-266
Lignocellulose Composition of Preparation of Porous Carbon Materials and CO2 Adsorption Performance Research. in Materials Science Forum. 2024.
Journal of Materials in Civil Engineering, 2006. 18(6): p. 759-767
Infrared spectroscopy–Materials science, engineering and technology, 2012. 510
Journal of Materials in Civil Engineering, 2019. 31(11): p. 04019274

However, the surface roughness tends to decrease with the increase in cutting speed when cutting of ductile materials.
In this study, 45# carbon steel (0.45% carbon) and cast iron were selected as the workpiece materials.
From this figure, it can be seen that the cutting speeds have the same effects on surface roughness for the two kinds of tool materials.
In machining of cast iron, PCBN and Si3N4 based ceramics are most commonly used tool materials [9].
Hodowany: Machining Science and Technology Vol. 2 (1998), p. 343 [4] A.G.

The physical properties of these materials are usually dependent on their preparation routes [1,2].
Pramanik, Jow-Lay Huang, Synthesis of La0.7Sr0.3MnO3 materials by versatile chemical technique, Physica B 369 (2005) 209-214
Newnham, Journal of Materials Science 26 (1991) 2566
Gnappi, Journal of Materials Science 31 (1996) 3153
Yanagida, Journal of Materials Science 30 (1995) 263