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Trassactions of Materials and Heat Treatment, 2017, 38(7): 120-125
Journal of University of Science and Technology Beijing, 2017, 39(6): 859-866
Advanced Materials Research, 2014, 1063:7-20
Science of Advanced Materials, 2017, 9(7): 1258-1265
Journal of University of Science and Technology Beijing, 2016, 38(6): 820-826

Experiments and methods Materials Two aluminium alloys have been studied.
The cyclic conditions were different for the two materials.
Similar hour glass specimens were used for both materials (section 1*1 mm2) but in the case of Al-Li a thin (2 µm) rectangular notch, 100 µm wide and 20 µm deep, was produced in the sample using Focused Ion Beam (FIB) machining.
Merle,P. and Peix,G, X-Ray Tomography in Material Science, Hermes Science,2000
[5] Buffi`ere, JY, Savelli, S, Jouneau, PH, Maire, E, and Fougres, R, Experimental study of porosity and its relation to fatigue mechanisms of model Al-Si7-Mg0.3 cast Al alloys, Materials Science Engng A, A 316, 2001, 115-126 [6] Ludwig,W, Buffire, JY, Savelli, S, Cloetens, Study of the interaction of a short fatigue crack with grain boundaries in a cast Al alloy using X-ray microtomography, Acta Mater. 2003, 51, 3, 585-598 [7] Ferri´e, E.

Journal of Xi’an Jiaotong University, 42, 11(2008), pp. 1394-1397
Journal of the European Ceramic Society, 29, 5(2009), pp. 919-924
[3] Jae-WonChoi, Ho-Chan Kim, Ryan Wicker: Multi-material stereolithography.
Journal of Materials Processing Technology Vol. 211 (2011), pp.318–328
Laser Journal, 29, 1(2008), pp. 60-62.

Journal of Cultural Heritage, 9, 376-385
Journal Electrochem. 129, 17-19
Materials and corrosion, 51, 97D
Corrosion Science, 48, 2172-2188
Journal Shandong University, 25(4), 494.

[4] Malinowski, S., Szczepanska, S. and Sloczynski, J.: Journal of Catalysis.
Materials Matters.
Journal of Physical Chemistry B.
Journal of Molecular Catalysis A: Chemical.
International Journal of Basic & Applied Sciences.

Progress in Aerospace Sciences, 2012, 53: 1-17
International Journal of Production Economics, 2011, 133(2): 694-707
Journal of Systems and Software, 2009, 82(2): 241-252
Journal of Tsinghua University (Sci&Tech), 2011(2): 230-233
Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(4): 403-406.

Introduction Within the scope of the impeding environmental problems, and from the materials' point of view, the definition and utilisation of "environmentally friendly materials" that is to support the processes of "eco-design" gains great importance.
Ziegmann: Journal of Composite Materials Vol. 40 (2006) p. 1933 [4] I.
Wazzan: International Journal of Polymeric Materials Vol. 55 (2006) p. 485 [12] D.
Sarkar: Journal of Applied Polymer Science Vol. 80 (2001) p. 1013 [13] M.
Thomas: Journal of Applied Polymer Science Vol. 64 (1997) p. 1739

The other one is the stability of perovskite solar cells, which depends heavily on the long-term stability of the photoabsorbing materials, and the encapsulation properties of the interfacial hole transporting/electron transporting materials.
Ideally, pure Cu2O with a slightly wider bandgap (~2.1eV) could function as a better hole transporting materials.
and the as-sprayed perovskite materials has reasonably low defect densities.
Science, 2014, 345(6196): 542-546
Materials Letters, 2003, 57(22): 3676-3680

So the blue light-emitting materials and devices is of great significance.
Many kinds of blue light materials [11-13] have been synthesized, and constantly have new progress.
The temperature of every source can be controlled independently with different materials.
Science,1995,267:1332 [4] R.
Journal of University of Electronic Science and Technology of China.2008.37(3):457-459 [11] J M Shi, C W Tang, C H Chen.

Materials Science Forum, 2020, 1012:430-435
Materials Performance, 2021 60(4):47-49
Journal of Mechanical Science and Technology, 2016, 30(8): 3805-3811
Materials Science & Engineering A, 2003, 355(1-2):137-143
Journal of Materials Engineering & Performance, 2009, 18(9):1193