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Influence of Calcined Temperature and Sintered Technology on the Properties of NBT-KBT-BT Lead-free Piezoelectric Ceramics HUANG Xin-youa, GAO Chun-huab, CHEN Zhi-gangc School of Materials Science and Engineering, Jiangsu University, Zhenjiang Jiangsu 212013,China ahuangxy@ujs.edu.cn, bhxy@ujs.edu.cn, cczg@ujs.edu.cn Keywords: inorganic non-metallic materials; lead-free piezoelectric ceramics; calcined temperature; sintered technology; sodium and bismuth titanate Abstract.
It has an excellent potential as lead-free piezoelectric ceramic materials[3].
The starting materials (reagent grade) were Bi2O3 (99.63%), Na2CO3 (99.5%), K2CO3(99.5%), BaCO3 (99.5%), and TiO2(99.5%).
By this token, sintered temperature affects obviously on the microstructure of materials.
Chen: Journal of Materials(in chin.)

The level of work safety is affected by the raw materials, technology and technical equipment used [Robert., 2020] A safety culture starts with the behavior of leaders.
The Severity Parameter Category Description Insignificant (1) No injury and/or minor material loss, material loss moderate, IDR 50,001 - IDR 100,00 Moderate (3) Requires serious treatment, loss of work time and/or substantial material loss, IDR 100,001 – IDR 1.000.000 Major (4) Resulting in disability / total loss of body function and/or substantial material loss, IDR 1,000,001 - IDR 3,500,000 Catastropic (5) Resulting in death and/or material loss, very large, > IDR 3,500,000 The matrix table is used to show the risk rating of the hazards in the work environment.
Work Accident Data Work Station Accident Source of danger Accident rate 2021 2022 2023 Sorting of raw materials Exposed to cuts from raw materials Sharp raw materials 2 1 2 Smelting Exposed to cuts from raw materials Sharp raw materials 1 1 2 Stepping on sharp metal Sharp raw materials 1 2 1 Casting Exposed to casting scrap metal Sharp scrap 2 3 1 Exposure to hot metal sparks Ladle position on the ground, furnace too high 3 1 4 Exposed hot metal Molten metal splatter 3 3 4 Ladle held Open assistive devices 1 2 1 Slashed raw products Sharp casting products 1 0 1 Finishing Exposed to metal chips in the finishing process Lathe scrap thrown to operator 2 5 4 Shortness of breath Sanding dust 2 3 3 Hearing injury Grinding noise 1 0 2 Dizziness and nausea Strong smell of paint 1 1 0 As a result of the calculation of the risk rating number (RRN )value, there are risks that must receive special attention because they have a high and medium risk according to the classification of the
Risk Level Weighting Work station Potential hazard Source of danger Potential hazard causes Likelihood Value Severity Value RRN Sorting of raw materials Exposed to cut from raw materials Sharp material Because the sorting process is still manual, when putting raw materials into the furnace can injure workers' hands Possible (3) Insignificant (1) 3 Smelting Exposed to cut from raw materials Sharp material Because the smelting process is still manual, when putting raw materials into the furnace can injure workers' hands Possible (3) Insignificant (1) 3   Stepping on sharp metal Sharp material Raw materials placed on the floor can be stepped on by workers at any time and cause injuries to the feet of workers Unlikely (2) Minor (2) 4 Exposed to foundry scrap metal Scrap material The casting media still uses soil media that is used many times, sometimes leaving casting residue that can injure feet and hands when making mold.
[2] Biggs, Adam T., and Russel, Dale W. , Safety underreporting during naval operations: Prevalence, associated risk, and several contributing factors, Jurnal: Safety Science, Volume 180, 2024 [3] Kuang, Hua Xia; Pan, Wen, and sun, Li-Yun, Putting workers’ safety front and center: Employee-organization exchange and employee safety performance, Journal of safety Research, Volume 91, pages 85-95, 2024

*This research is supported by the National Natural Science Foundation of China (51005193), supported by Fundamental Research Funds for the Central Universities (SWJTU09CX016), and supported by the youth funds of Southwest Jiao Tong University.
Development of approximations for HSCT wing bending material weight using response surface methodology [D].
International Journal of Heat and Mass Transfer, 2006, 49:3439~3447 [13] K.
Journal of Mechanical Science and Technology, 2008, 22:1651~1659 [14] Hu Wang, Enying Li, Guang Yao Li.
[16] Joachim Danckert, Experimental investigation of a square-cup deep-drawing process, Journal of Materials Processing Technology, 1995(50):375~384

China 3Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P.
Low temperature MEMS manufacturing processes: plasma activated wafer bonding, Micro- and Nanosystems- Materials and Devices.
Symposium (Materials Research Society Symposium Proceedings). 872 (2005) 85-90 [5] C.
Cohesive zone model for direct silicon wafer bonding, Journal of Physics D: Applied Physics. 40(2007) 3070-3076 [9] C.
Hydrophilic low-temperature direct wafer bonding, Journal of Applied Physics, 104 (2007) 123524(1-6) [10] F.

Experimental Apparatus and Materials. 8453 UV-Vis spectrophotometer (Agilent CO., LTD, U.S); WFJ 7200 visible spectrophotometer (Unico Shanghai Instrument CO., LTD, China) ; 1,1-di-phenyl-2- picryhydrazyl (DPPH, , Sigma-Aldrich CO., LTD, U.S); kaempferol standard (Zhejiang east China pharmaceutical CO., LTD, China, purity＞99%); rutin standard (Sigma-Aldrich CO., LTD, U.S, purity＞98%); absolute ethyl alcohol.
Zhu, et al: Food Science.
Li: Journal of Pharmaceutical Analysis.
[4] Emilio Ruiz, Eugenia Padilla: European Journal of Pharmacology.
Zhang, et al: Chinese Journal of Experimental Traditional Medical Formulae.

Rusop1,2,c 1NANO-ElecTronic Centre (NET), Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia. 2NANO-SciTech (NST), Institute of Science, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia.
The physical properties of nano-structured ZnO materials, for instance nanorods [5,9,10,11], nano-ribbon [12], nano-tripods[13] and nano-tetrapods [14], [15] and [16] have been studied.
Jouneau et al., “Morphology and growth mechanism of aligned ZnO nanorods grown by catalyst-free MOCVD,” Microelectronics Journal, vol. 40, no. 2, pp. 242-245, 2009
Lupan et al., “Fabrication and characterization of an individual ZnO microwire-based UV photodetector,” Solid State Sciences, vol. 13, no. 5, pp. 1205-1210, 2011
Rusop, “Novel synthesis of aligned zinc oxide nanorods on a glass substrate by sonicated sol-gel immersion,” Materials Letters, vol. 64, no. 10, pp. 1211-1214, 2010

Modification of Hypereutectic Al-20%Si Alloy by Neodymium Weixi Shi1, a, Chengwu Du1, b, Guangzhe Lv1, c and Changwan Liu1, d 1School of Metallurgy Engineering, Liaoning institute of Science and Technology, No, 176, Xianghuai Road, Benxi, Liaoning, 117004, P.
Acknowledgements This work was financially supported by Liaoning Research Fund of Scientific cause and public welfare (2014003016) and Training Plan of College Students' Innovation and Entrepreneurship (201411430075) and the Doctoral Scientific Research Starting Foundation of Liaoning institute of Science and Technology (1212B4) References [1] D.H.
Journal of Materials Processing Technology, 2007, 189(1-3): 13-18
Li, Journal of Alloys and Compounds, 2010, 508: 480-485
Guan, et al., Journal of Materials Processing Technology, 2007, 189(1-3): 13-18

References [1] Alper S E, Temiz Y, Akin T, "A compact angular rate sensor system using a fully decoupled silicon-on-glass MEMS gyroscope," Microelectromechanical Systems, Journal of, vol. 17, pp. 1418-1429, 2008
Microelectromechanical Systems, Journal of, 2004, 13(5): 715-724
Journal of Nanjing University of Science and Technology, 2013, 37(1): 94-100
Mechanics of MaterialsⅡ(Fourth Edition) [M].
Mechanics of materials [M].

As the rutting of asphalt pavement mostly happens in high temperature seasons, the rutting problem is also considered as “the problem of high temperature stability” in the material and structure research of asphalt pavement.
Therefore, deeply study on anti-rutting performance of asphalt mixture is meaningful for the guide of material composition design and the structure design.
Test Scheme Raw Materials.
Road deterioration and maintenance effect: Models for Planning and Management, the Highway Design and Maintenance Standard Series (Johns Hopkins University Press, Baltimore 1987) [4] Hongzhou Zhu and Xiaoming Huang: Journal of Highway and Transportation Research and Development Vol.21 No.4 (2004), p.1, In Chinese [5] Jiupeng Zhang, Xiaoming Huang and Tao Ma: Journal of Transportation Engineering and Information Vol.6 No.2 (2008), p.51, In Chinese [6] Ping He, Zhigang Zhou, Yinpei Yang, Suping Luo and Lin Feng: Journal of Changsha University of Science and Technology (Natural Science) Vol.10 No.1 (2013), p.7, In Chinese

Numerical Simulation of GMAW Process from the Heat Source to the Weld Pool Formation Yosuke Ogino1,a*, Satoru Asai1,b and Yoshinori Hirata1,c 1Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan aogino@mapse.eng.osaka-u.ac.jp, basai@mapse.eng.osaka-u.ac.jp, chirata@mapse.eng.osaka-u.ac.jp Keywords: Gas metal arc welding process, Numerical simulation, Arc plasma, Weld pool formation Abstract.
Acknowledgement This research was supported by the Structural Materials for Innovation of the Cross ministerial Strategic Innovation Promotion Program (SIP) of Japan Science and Technology (JST) References [1] S.
Tsai: “Three-dimensional modeling of transport phenomena and their effect on the formation of ripples in gas metal arc welding”, Journal of Applied Physics, 107 (2010), pp. 054905 [4] J.
Nichols: “Volume of Fluid (VOF) method for the dynamics of free boundaries”, Journal of Computational Physics, 39 (1981), pp. 201-225 [6] Y.
Asai: “Numerical model of weld pool phenomena with various joint geometries and welding position”, Quarterly Journal of the Japan Welding Society, 35 (2017), 1, pp. 13-20 (in Japanese)