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At present, there are a lot of reports about enteric acrylic resin for coating materials.
Experimental Materials.
Coots: International Journal of Pharmaceutics.
Breitkreutz: Journal of Controlled Release.
Zhu: Chemical New Materials.

The concept of ultra-precision machining updates with the development of science and technology constantly.
Grinding Experiment Wearing is the successive removal of surface materials by repeated friction and is mainly caused by microscopic mechanical fracture.
Acknowledgements This study was supported by National Natural Science Foundation of China (Grant No. 91023020, 5117702).
References [1] Yuan Julong, Zhang Feihu, Dai Yifan, et al, Development Research of Science and Technologies in Ultra-precision Machining Field, Journal of Mechanical Engineering, 2010,46(15): 161-176 [2] H.T.
Engg. , 1990, 56(5):800-805 [9] M R Behzadi, B Arezoo, Static and dynamic models for predicting the effects of supports on machining flatness and roughness, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2002, 216: 735-742 [10] Akinjide Olufemi Oluwajobi, Stanley Chimezie Obi, Xun Chen, Ultraprecision Machining of Inconel 718 with Nanometric Finish, Journal of Materials Science and Engineering,2011,5: 406-410 [11] Jing Xiu-bing, Lin Bin, ZHANG Da-wei.

The PULSTAR nuclear reactor at North Carolina State University is a 1-MW open-pool reactor and a center for irradiation and examination of materials.
Such materials are widely used as structural and sensor materials related to nuclear reactors where microstructural damage is critical in determining their performance and failure modes.
This demonstrates the sensitivity of PALS in quantifying vacancy levels in materials, which would be otherwise challenging to measure.
Gidley, The Intense Slow Positron Beam Facility at the PULSTAR Reactor and Applications on Nano-materials Study, AIP Conf.
Vallery, “Positron Annihilation as A Method to Characterize Porous Materials”, Annual Review of Materials Research, 36 (2006) 49–79 [9] M.

Table 2 lists some properties of the materials.
Rausch: International Journal of Mechanical Sciences, Vol. 42 (2000), pp.1205
Zeng: Journal of Materials Processing Technology, Vol. 168 (2005), pp.42
Dewes: Journal of Materials Processing Technology, Vol. 150 (2004), pp.116
Lin: Journal of Materials Processing Technology, Vol. 86 (1999), p.119

akotov_sa@spbstu.ru, bmuzafarova.sr@edu.spbstu.ru, clivintsova_mg@spbstu.ru Keywords: thermally expanded graphite, rolling, compactability, density, porosity, multilayer strips, powder materials, composite materials, technology efficiency.
The method of expansion of oxidized graphite powders also affects the quality of strip materials.
Natural and engineering sciences.
Mikhailov, Hybrid Aluminum Composite Materials Based on Carbon Nanostructures, Materials Science 21, iss. 3, pp. 372-375 (2015).
Chaikovskii, Classification of high-damping metallic materials, Strength of Materials 18, iss. 10, pp. 1325-1329 (1986).

Journal of Materials Chemistry A, 2019, 7.11: 6113-6119
Callister's materials science and engineering.
Journal of Thermoplastic Composite Materials, 2019, 32.11: 1566-1581
Journal of Materials Research and Technology, 2020, 9.6: 16367-16377
Journal of Materials Processing Technology, 213(9), pp.1484-1494.

Establishing PZT piezoelectric ceramic finite element model Piezoelectric body is a coupling of structure field and electric field, as piezoelectric materials concerned, voltage make its internal stress, which electrical displacement rely on.
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Introduction All kinds of different brittle materials such as ceramics, functional material are used widely in aeronautics, waterdipper and auto-mobile etc fields.
The failures of materials can be classified into two types: brittle fracture and plastic deformation according to the classical strength theory of which the former is affected mainly by traction stress and the latter is deviator strain energy density.
Journal of Mechanics Science and Technology,2008,22: 1269-1278 [6] A.
Material and design, 2010,31: 60-67 [9] A.
International Journal of Fracture, 2004,127: 239~264 [19]Zhang J., Zhao YX., “Resive for the theory of strain energy density factor”, Journal of Baoji College of Arts and Science(Natural Science), 16,1996,pp.70-74 [20] X.M.

Khatak, Baldev Raj, Materials Science and Engineering A 407 (2005) 188–195
Debbouz, Journal of Materials Science 34 (1999) 1073
Navaï, Journal of Materials Science 30 (1995) 1166
Bhattacharya, Materials Characterization 54 (2005) 141
De, Journal of Nuclear Materials 334 (2004) 115–132 [32] Daisuke Shintani, Toshio Ishida, Hirokazu Izumi, Tomokazu Fukutsuka, Yoshiaki Matsuo, Yosohiro Sugie, Corrosion Science 50 (2008) 2840–2845

College of Materials Science and Engineering, Xi’an University of Technology, Shaanxi 710048, China 2.
College of Materials Science and Engineering, Shaanxi University of Science and Technology, Shaanxi 710021, China awangying@sust.edu.cn, bzhaogy@xaut.edu.cn, cwytzhi@126.com Keywords: Yttrium Oxide; Hydrothermal Synthesis; Morphology; Crystalline Phase Abstract.
Kim, Y.S.Song:Materials Science and Engineering A, Vol. 289(2000),p. 1 [11] M.
Yasui: Journal of Materials Science vol. 43(2008)1214 [16]P.F.
Frost: Journal of Colloid and Interface Science vol.326 (2008), p.289 [18] T.X.Cai, Y.W.Zeng and W.Zhang: Journal of Power Sources vol.195 (2010) p. 1308