Search results

Experimental Material and Method The experimental material was low carbon bake hardening steel in annealing, and its chemical composition is listed in Table 1 as follows: Table 1.
The chemical composition of experimental steel (wt %) C Si Mn P S Al N 0.21 0.01 0.21 0.011 0.007 0.019 0.002 The experimental material was first processed with the gauge length of 20mm as standard tensile specimen by rolling direction.
Materials Science & Engineering A, (2018) vol. 726, p. 160-168
Journal of Alloys and Compounds (2000) vol. 310, p. 405-410
Materials Science & Engineering A, (2015) vol. 639, p. 439-447

Defect Recognition for Honeycomb Sandwich Composites Using Pulsed Thermography Yan Huo1, a, Hui-juan Li 2, b 1 School of Material Science and Engineering, Beihang University, Beijing, 100191, China 2 Aero-polytechnology Establishment, Beijing, 100028 , China ahuoyan0628@gmail.com, blhj1900@126.com Keywords: Pulsed thermography; Flat-bottom holes; Defect recognition; Honeycomb sandwich composites Abstract.
For the multilayer structure, the mentioned methods measure the overall thermal effusivity of the material.
And R is a coefficient related to the thermal effusivity of the two layers material.
Mandelis, New Photopyroelectric Technique for Precise Measurements of the Thermal Effusivity of Transparent Liquids, International Journal of Thermophysics, Vol. 24 (2003) [2] Favro L.
Maldague, Nondestructive Evaluation of Materials by Infrared Thermography, Springer, New York, (1993) [5] H.S.

Introduction Transition metal dichalcogenide (TMD) materials with layered structure and band gaps around 1-2eV have attracted increasing attention due to their distinctive electrical and optical properties in the various fields such as electronic and optoelectronic devices [1-5].
[6] Li, Xiao & Zhu, Hongwei, Two-dimensional MoS2: Properties, preparation, and applications, Journal of Materiomics, 2015, 1, 33-44
Mechanical exfoliation and layer number identification of MoS2. 2D materials. 2017, 4, 015013
Materials, 2020, 13, 5515 [11] Scharf, T.W, Kotula, P.G, Prasad, S.V, Friction and wear mechanisms in MoS2/Sb2O3/Au nanocomposite coatings, Acta Mater, 2010, 58, 4100–4109 [12] Scharf, T.W, Rajendran, A.M, Banerjee, R.K, Sequeda, F.
A comprehensive review on synthesis and applications of molybdenum disulfide (MoS2) material: Past and recent developments. 

Introduction Since transition metal oxides show rich physical properties with various phase transitions, a lot of attention has been recently paid to these materials.
This implies that holes are doped into the host material LMO.
Shimizu: Journal of Physics.
Shimizu: Key Engineering Materials, Vol. 962 (2019) p. 17 [11] H.
Shimizu: Key Engineering Materials, Vol. 853 (2020) p. 63

Changsha university of science and technology professor Zhu Mengliang do the related research[2], as shown in table 3.
Central South Highway Engineering,2005 [2] Zhu Mengliang,ZhuJing.Material parameters on the high-temperature stability of asphalt mixture[J].Journal of changsha university of science and technology(natural science report),2007 [3] Zhang Weibing,Qian Huijing.
The factors and improvement measures of the asphalt mixture high temperature stability[J].Traffic science and technology and economy,2008 [4] Zhu Hongzhou,Huang Xiaoming.Stability of asphalt mixture at high temperature influence factors analysis[J].Highway traffic science and technology,2004

Simulation and Experiment Study of Heat Dissipation of Heavy-duty Vertical Lathe Workbench Junpeng Shao1, a, Xiaodong Yang1, b, Jian Zhu1, c, Xiaoning Mu 1, d, Kejia Wu1, e 1Harbin University of Science and Technology, Harbin, Heilongjiang Province, China asjp566@sina.com, bpeapea1780@163.com Keywords: Vertical lathe; Heat transfer; Temperature measurement experiment Abstract.
Harmand: Journal of Heat Transfer, Vol. 133(2011) No. 2. 021702 ].
Diameter of workbench is 7.44m, material is HT300, thermal conductivity is 52.335W/m·K, specific heat capacity is 523.35J/(kg·K).
Acknowledgments This work was supported by International Science & Technology Cooperation Program of China (ISTCP 2012DFR70840), National Natural Science Foundation of China (51005063, 51075106), Technology item of Heilongjiang Provincial Education Department (12511087, 12521096, 12511086, 12511088, 11551080, 12521119), Heilongjiang Postdoctoral Science-Research Foundation (LBH-Q12062), Special Fund on the Science and Technology Innovation People of Harbin (2012RFQXG077, 2013RFQXJ086).

For a new treatment method, cavitation could purify many difficult degradable material and toxic substances, but also contain many other advantages, such as producing no secondary pollution, simple design of reactor.
Acknowledgements This work was financially supported by Science Technology Department of Zhejiang Province science and technology plan projects (2008C21022, 2009C31092), Zhejiang institute of mechanical & electrical engineering Found project (0411030202).
Hydrodynamic Cavitation and Its Processes of Study, Journal OF Hunan City Univisity(Natural Science), 2004, 13（4）:22-25 (in chinese) [2] Harrold, J.C.(1947).
Chemical Engineering Science, 2000,55(9) :1 633一1639
[7] Pandit A B,Joshi JB .Hydrodynamic of fatty oils: effect of cavitation[J].Chemical engineering science.1993,48(19):3440-3442 [8] Moholkar V S, Senthil Kumar P, Pandit A B. 1999.Hydrodynamic cavitation for sonochemical effects[J].Ultrasonics Sonochemistry, 6(1-2): 53-65

But in many fields, such as meteorological science, engineering reconnaissance, environmental engineering, medicine and criminal investigation, there is a common characteristic.
In this paper, the selected material is ZL114A (aluminum with =8mm), which are welded on the conditions of trim=0.65, μ=17.6, L(/ h)=1.5.
Acknowledgements This work was financially supported by the Tianyuan Foundation of the National Natural Science Foundation (11226036) and Provincial Science Program in Universities, Shandong (J13LA55).
Journal of Wuhan university of technology.
Huazhong University of Science and Technology. 2008

Jones, A General Theory for Elastically Constrained Ball and Roller Bearings under Arbitrary Load and Speed Conditions, ASME Journal of Basic Engineering. (1960) 309-320
Lazovic, Load distribution between rolling elements of deep groove ball bearings, Journal of Mechanical Engineering, 3 (2000) 14-17
Guillot, Calculation of the Stiffness Matrix of Angular Contact Ball Bearings by Using the Analytical Approach, ASME Journal of Mechanical Design. 122(1) (2000) 83-90
Tomović, Calculation of the necessary level of external radial load for inner ring support on q rolling elements in a radial bearing with internal radial clearance, International Journal of Mechanical Science. 60 (2012) 23-33
Miltenović, Vibration response of rigid rotor in unloaded rolling element bearing, International Journal of Mechanical Sciences. 52(9) (2010) 1176-1185

A Study on Novel Gas Atomization Device for Preparing Ultra Fine Metal Powder Xinan Dang a, Lili Wangb and Lijun Yangc Department of Mechano-Electronics Engineering, Shaanxi University of Science & Technology, Shaanxi Xian 710021, China adangxa@sust.edu.cn, bwang0905005@163.com, cyanglijun@sust.edu.cn Keywords: Metal powder; Gas atomization; Two fluids atomization device; Particle size Abstract.
Introduction As a new type of raw materials, metal micro-particles or powder has been widely used in metallurgy, materials, agriculture, mining, construction, chemical industry, mechanical industry and many other industries.
Acknowledgements This study was supported by Natural Science Foundation of Shaanxi China (2005E212).
Preparation and Application Technology of Ultrafine Structure (China Petrochemical Press, Beijing China, 2001) In Chinese [2] Liangxi Yu, Maiqun Zhao, Weifeng Zhang et al .Development and Application of Materials (2003) In Chinese [3] Gang Chen, Zhenhua Chen, Hongge Yan, et al.
The Chinese Journal of Nonferrous Metals (2001) In Chinese [4] Allimant, M.P.