Search results

Journal of Wuhan University of Technology-Materials Science edition, 26(4): 749-753, (2011) [2] Cao, M.L. and J.Q.
Journal of Wuhan University of Technology-Materials Science edition, 26(5): 1004-1009, (2011) [3] Cao, M.L. and J.Q.
Materials Science & Technology 2010 Conference & Exhibition, Houston, USA, October 17-21, (2010) [4] Lee, W.J., et al. .
Materials Transactions, 51(6): 1089-1093, (2010) [5] FABER KT and EVANS AG..
Journal of Materials Science, 24: 1589-1593, (1989)

Evaluation of the antibacterial properties of PVC materials used, in particular, in medicine, is becoming increasingly important due to increased sanitary and hygienic requirements.
Broad antimicrobial activity and surfactant properties have made quaternary ammonium compounds the preferred additives for PVC medical grade materials [7].
Experimental Details PVC materials were obtained on the basis of EP-6602-C emulsion polymer (GOST 14039-78).
Kazakova, Bactericidal properties of quaternary ammonium salts, Scientific and practical electronic journal "Alley of Science". 1 (2018) 171-174
Chukhlanov, Biological resistance of polymer materials, Vladimir State University, Vladimir, 2014

It may substitutes proportionally of raw materials and be functional feed for ruminant.
Introduction Loh (2002) [1] reported that the use of local raw materials in production of animal feed in Malaysia needs more innovative R&D for ruminant industry.
Thus far, bulk of raw materials for production of animal feed and also commercial animal feeds are imported from other countries and as consequences, these contributed to high cost of animal feed in livestock industry.
Current technology in evaluating, processing and utilisation of new materials becomes more advance thus provides numerous opportunities in production to minimize the feed costs [3].
Materials and Methods The microorganism used in this study was Lactobacillus rhamnosus NRRL 442.

Introduction It is well-known that the mechanical properties of materials under dynamic loading are different remarkably from that under quasi-static case.
Thus, the characterization of dynamic mechanical properties of wheel/rail materials is required and important for designing and assessing the safety of the wheel-rail system.
Over the last several decades, there are a number of constitutive models (i.e., empirical, semi-empirical and physically-based models) were proposed to depict the dynamic plastic behavior of materials.
Clark, An investigation into the dynamic effects on the track of wheelflats on railway vehicles, Journal of Mechanical Engineering Science. 21 (1979) 287-297
Bassim, Characterization of the compression properties of rail steels at high temperatures and strain rates, Materials Science and Engineering A. 141 (1991) 247-260

Acknowledgements The research work is supported by the National Science Foundation of China (No.10902004).
Nuismer: Journal of Composite Materials Vol.8 (1975), p.253-265 [4] R.J.
Labor: Journal of Composite Materials Vol.12 (1978), p.238-245 [5] P.
Mayugo: Journal of Composite Materials Vol.42 (2008), p.2717-2745 [6] L.B.
Matthews: Journal of Composite Materials Vol.33 (1999), p.2248-2280 [8] Composites Design Manual.

The interaction between different materials panels is incorporated by defining the “tied surface to surface” command at the interface between the surfaces of both materials.
This feature of the MAT_72R3 material model enables its adjustment for the strain hardening materials.
Leong, Construction and Building Materials 36 (2012) 216-227
Rushing, ACI Materials Journal 110 (2013)
Ong, Construction and Building Materials 183 (2018) 675-692

Materials Montmorillonite had been bought from Shanghai Maclean's Biochemical Technology Co.
The materials were further analyzed by SEM, EDS, XRD, and BET characterization methods.
Journal of Colloid and Interface Science 606: 941-952
Materials Research Express 6.5: 056306
Journal of colloid and interface science 510 : 207-220.

Materials and Methods Raw materials One single commonly available ordinary Portland cement (OPC) pre-mixed mortar is adopted as the embedding medium (Monotop, Sika AG, Switzerland).
Sharma, Impact Resistance and Mechanical Properties of UHPFRC, in: Iranian Journal of Science and Technology - Transactions of Civil Engineering, Vol. 43, Springer International Publishing, 2019, pp. 371-380
Carr, Failure mechanisms of yarns subjected to ballistic impact, Journal of Materials Science Letters 7 (18) (1999) 585-588
Siligardi, Sustainable mineral coating of alkali-resistant glass fibres in textile-reinforced mortar composites for structural purposes, Journal of Composite Materials 53 (28-30) (2019) 0021998319855765
Rep. 12, International Union of Laboratories and Experts in Construction Materials, Systems and Structures (2016)

Cell structure refining mechanism of pure aluminum foam with fine cell structure LUO Xiaoxu1,a, *ZUO Xiaoqing2,b, WANG Yongsheng2,c 1Faculty of Foreign Languages & Cultures, Kunming University of Science and Technology, Kunming 650093, P.R.China 2School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P.R.China alxxlxx01@yahoo.com, bzxqdzhhm@hotmail.com, cwyshdoc@gmail.com (*corresponding author) Keywords: pure aluminum foam; fine cell structure; cell refining mechanism Abstract.
References [1] L.J.Gibson, M.F.Ashby: Structure and Properties Vol. (1988), p. 283-343 [2] L.P.Lefebvre, J.Banhart and D.C.Dunand: Advanced Engineering Materials Vol. 10(2008), p. 775-787 [3] R.E.Raj, V.Parameswaran and B.S.S.Daniel: Materials Science and Engineering A Vol. 526 (2009), p. 11-15 [4] D.H.Yang, D.P.He:The Chinese Journal of Nonferrous Metals Vol. 14(2004),p. 2021-2028(in Chinese) [5] J.C.Mu，H.F.Xi, Z.Q.Long: JOURNAL OF EXPERIMENTAL MECHANICS Vol. 24(2009), p. 224(In Chinese) [6] H.F.Cheng, X.M.Huang, L.Xu: Ordnance Material science and engineering Vol. 25(2002), p. 12-14(In Chinese) [7] T.G.Nieh, K.Higashi, J.Wadsworth: Materials Science and Engineering A Vol. 283(2002), p. 105-110 [8] Z.G.Xu, J.W.Fu, T.J.Luo, Y.S.Yang: Materials and Design Vol. 34(2012), p. 40-44 [9] P.R.Onck, E.W.Andrews, L.J.Gibson: International Journal of Mechanical Sciences Vol. 43(2001), p. 681-669 [10] X.Q.
Bi, J.S.Lu: The Chinese Journal of Nonferrous Metals Vol. 19 (2009), p.682-688(in Chinese) [11] X.Q.Zuo，A.R.
Kennedy，Y.S.Wang，Y.S.Bi，J.S.Lu，Y.Zhou: Rare Metal Materials and Engineering Vol.38(S3)(2009), p.254-259(in Chinese) [12] D.H.Yang, D.P.He: The Chinese Journal of Nonferrous Metal Vol. 12(12)(2004), p. 2021- 2028 (in Chinese) [13] Y.S.Bi, X.Q.Zuo, F.
Zhang: Materials Review Vol. 22(2008), p. 48-52(In Chinese) [14] X.Q.Zuo, M.S.Liao, and X.L.Pan: Heat Treatment of Metals Vol.31(S)2006, p. 98-101(in Chinese) [15] C.Körner, M.Arnold and R.FSinger: Materials Science and Engineering A Vol. 396(2005), p. 28-40 [16] B.Matijasevic, J.Banhart: Scripta Materialia Vol. 54(2006), p. 503-508 [17] X.Q.Zuo, X.L.Pan, M.S.Liao: Materials Science and Technology Vol. 16(2008), p. 211-215(in Chinese) [18] C.C.Yang, H.Nakae: Journal of Materials Processing Technology Vol. 141(2003), p. 202-206

Based on 15 inches high air pressure drill abroad subject material samples of the physical and chemical analysis, learn foreign drill bit materials such steel grade in the United States 4330 mod, namely the super pure high strength steel.
With domestic special steel factory research and many experiments, we developed the high strength steel with ultrapure smelting technology 20CrMnSiNi2MoA materials.
4330 mod materials, development of new materials on the resistance to overload ability is better than that of similar foreign products materials; And new material percentage elongation, reduction of area, impact value is low, show the development of new materials in some poor ability to resist crack instability expansion, therefore, we to material smelting, forging, heat treatment process was put forward strict requirements, the main measures mainly has: (1) Product size each transition cross section must be rounded; (2) Within the overall machining precision up to 3.2; (3) The surface and inner hole are all shot blast; (4) Refinement of grain size and take the second normalizing treatment; (5) Four inspection check: namely raw materials the factory inspection to check; After rough turning inspection check; Heat treatment testing inspections; Finishing inspection check.
References [1] Zhu Xiaohua,Ling Yume and Tong Hu:   Journal of Central South University(Science and Technology) .
[5] Pan Guangyong: Science & Technology Information.