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Materials and Structures, vol. 51, no.4.
Bulletin of Materials Science (India), 25(5), 375–379. https://doi.org/10.1007/bf02708013 [18] E.
Zhu, “Overview on plant extracts as green corrosion inhibitors in the oil and gas fields,” Journal of Materials Research and Technology, vol. 15, pp. 5078–5094, Nov. 2021
Journal of Hazardous Materials Advances, 17(100591), 100591. https://doi.org/10.1016/j.hazadv.2025.100591 [32] M.
Journal of Materials Science. https://doi.org/10.1007/s10853-025-10764-2 [34] S.

Oliver, Residual stress in a thick section high strength T-butt weld, Materials Science & Engineering: A, 480 (2008) 411-418. ,[] A.
Withers, Residual stress field in a friction stir welded aluminium extrusion, Materials Science Forum, 347-349 (2000) 678-683. ] or laboratory x-rays [[] E.J.
Smith, Residual stress measurement within a European UIC60 rail using integrated drilling techniques, Materials Science Forum, 440-441 (2003) 85-92. ,[] D.
Mills, A comparison of MAPS and synchrotron X-ray methods: stresses measured in railway rail sections, Materials Science Forum, 404-407 (2002) 881-886. ,[] P.J.
Vaughan, Synchrotron X-ray measurements of residual stress in a worn railway rail, Materials Science Forum, 404-407 (2002) 767-772. ,[] T.S.

At present, China's handling bagged materials depends mainly on human.
The image feature matching bags of materials was completed well.
The image feature matching bags of materials was completed well.
Journal of University of Jinan(Science and Technology), 2007, 3(21): 238-242
Journal of University of Jinan(Science and Technology), 2010, 2(24):193-197

Journal of materials in civil engineering，2008(10):640~649
Journal of materials in civil engineering，2007(10):848~854
Journal of materials in civil engineering，2010(9):853~857
Journal of materials in civil engineering，2004(4):107~115
Materials Journal，V.94.No.6.November- December 1996

Construction and Building Materials, 2014, 60(16): 25-32 [3] S.
Construction and Building Materials, 2014, 54(15): 118-122 [4] J.
Journal of Petroleum Science and Engineering, 2015, 129: 63-76 [6] A.
Journal of Natural Gas Science and Engineering, 2015, 23: 165-170 [7] J.
Journal of Hazardous Materials, 2012, 213: 109-116.

In the case of power netallurgy, SiC powder is used as starbilization materials for makin metal foam.
[5] Bo-Young Hur, Duck-Kyu Ahn, Sang-Youl Kim, Yong-Su Um, Arai Hiroshi, Materials Science forum, 439 (2003) 143-148 [6] S.
Kennedy, Journal of Colloid and Interface Science (In press) [8] Landry K, Kalogeropoulou S, Eustathopoulos N.
[14] Soo-Han Park, Bo-Young Hur, Kwang-Ho Song, Materials Science Forum, 475~479(2005) 2683~2686 [15] S.
Guden, Journal of Materials Science 38 (2003) 4745 - 4755 [16] N.

Suryanarayana: Progress of Materials Science Vol. 46 (2001), p.1
Schwarz: Materials Science.
Takacs: Progress of Materials Science Vol. 47 (2002), p.355
Ambrozio Filho: Materials Science.
Leal Neto: Materials Science.

Badawia Faculty of Science, Physics Department, El- Minia University, El-Minia, Egypt aemadbadawi@yahoo.com Keywords: Al Alloys, Grain Size, Plastic Deformation, Positron Annihilation Lifetime, XRD Abstract Certain radioactive isotopes decay by emitting positrons, and the positrons can be used to probe the structure of solid materials.
Grain boundaries in materials posses a more open structure than the perfect crystal as shown by Seeger and Schottky [9].
Anderson, Science, 76 (1932) 238
Abis: Materials Science Forum, 175[1] (1995) 351 [18] Emad Badawi, M.
Ramadan, Turkish Journal of Physics, 24 (2000) 543-550

Introduction Metals and ceramics materials each have their own unique properties and limitations.
Experiments Raw Materials.
Zhou: Materials Science and Engineering of Powder Metallurgy Vol. 10 (2005), p. 78-86 [5] A.
Zhuang: Ordnance Material Science and Engineering Vol. 23 (2000), p. 7-11 [8] Y.
Laures: Mechanics of Materials Vol. 10 (1990), p. 59-71

La(NO3)3·6H2O and (NH4)3PO4·3H2O were used as raw materials.
Materials Letters. 57 (2002) 822-827 [3] J.A.
Materials Chemistry and Physics 79 (2003) 30-36
Materials Chemistry and Physics. 97 (2006) 494-500
Materials Letters 61(200) 1260-1264.