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An Experimental Investigation on Transpiration Cooling for Supersonic Vehicle Nose Cone using Porous Material Lianjin Zhao1, a, Jia Lin1, b, Jianhua Wang1, c Jinlong Peng2, d, Dejun Qu2, e, and Lianzhong Chen2, f 1 University of Science and Technology of China, Hefei, 230027, Anhui, P.R.
In the previous experimental investigations, different gaseous coolant [1-4], liquid alcohol and water [5-10]was used as transpiration cooling media, and different porous materials, such as C/C, porous ceramic (91% Al2O3 and 9%SiO2) and metal net structure, were used as transpiration cooling matrixes.
These investigations concluded that the cooling effect of gaseous coolant is limited, but liquid coolant has a large potential to achieve a higher cooling capacity per unit mass due to its large latent heat released by liquid phase change, sintered metal materials have significant advantages in controllable permeability and better machining property.
Hald, Experimental investigations of transpiration cooling applied to C/C material, International Journal of Thermal Sciences, 54 (2012) 70-81
[6] Jérôme Bellettre, Françoise Bataille, André Lallemand, Prediction of thermal protection of walls by blowing with different fluids, International Journal of Thermal Sciences, 38 (6) (1999) 492-500

Indian Journal of Science and Technology 9 (2016) 1-7
Yamagata, The science and technology of materials in automotive engines, Elsevier, 2005
Journal of Materials and Environmental Science 6 (2015) 1369-1376
Materials Science and Engineering: A 764 (2019)
Materials Science Forum, September (2015) 485-488. https://doi.org/10.4028/www.scientific.net/msf.830-831.485 [27] O.S.I.

Study on the tensile fracture characteristics of cars oil filter materials FENG Jian-yong1,2,a, ZHANG Jian-chun2, ZHANG Hua2 1.Donghua University Textile Institute,ShangHai,China 2.The Quartermaster Research Institute of General Logistics Department of the PLA,Beijing,China amydream1109@163.com Keywords:automobile oil filter, filter used material, tensile fracture, macro characteristic, microscopic characteristics Abstract.The oil filter materials are frequently subjected to abrading and all kinds of friction and making the materials suffered from damage,consequently,the property and service life of the filter materials is reduced.So the purpose of this thesis is to research the tensile performance of the automobile oil filter material and according to constant speed tensile test to measure the macro fracture characteristics,tensile property in the process of before and after tensile testing,tensile fracture form and the math expression.Then compared the breaking strength,breaking
elongation,elongation at break and breaking work of these ten oil filter materials.Hope that through the study on the tensile performance of the oil filter materials and summarizes the damage mechanism and tensile fracture form,in order to provides a new way to develop the new material.
Introduction There are many materials are used in the car oil filter,such as glass fiber filter paper,cotton wood pulp filter paper,the melting and spun-bonded polyester and polypropylene nonwoven filter material.The filter subject is matal deposits,solid particles and other impurities，meanwhile,the car engine oil filter material constantly exposed to brading,friction and other oil fluid force,so the oil filter materials often suffered from all kinds of problems and affected the service life and property.As a result,this paper mainly based on such a thought to research the wear fracture performance of car engine oil filter material and to see and to mater the wear performance.Simultaneously,it will provide a reliable basis for developing new filter material and trying to reduce wear fracture behavior,improving service life and reducing cost.
References [1]Sang Young Yeo,Dae young Lim,Sung Won Byun,et al.Design of filter bag media with high collection efficiency.Journal Matter Science,Vol.42,Issue.19,8040-8046,2007
[2]Young Ok Park,Hyun-seol Park,Seok Joo Park,et al.Development and evaluation of multilayer air filter media.Koeran Journal Chemical Engineer,Vol.18,Issue.6,1020-1024,2001.

Smaller LG and larger LT can be selected for materials similar to 30CrMnSi.
The basic parameters of materials used in experiments are shown in Table 1.
So 30CrMnSi is the easiest to be cut among three materials.
Wang:Journal of Materials Processing Technology Vol.132(2003), p. 345 [4] R.D.
Ding: Journal of Northeastern University (Natural Science) Vol.19 (1998), p.306(In Chinese)

Another approach is the subsequent local heat treatment of workpieces made of homogeneous materials.
Another way is the manufacturing of gradient materials by thermo-mechanical forming processes.
Was, The relationship between hardness and yield stress in irradiated austenitic and ferritic steels, Journal of Nuclear Materials. 336 (2005) 2-3, 267-278 [12] D.
M´Saoubi, Hardness-based flow stress for numerical simulation of hard machining AISI H13 tool steel, Journal of Materials Processing Technology. 199 (2008) 1, 64-73 [13] D.
Shivpuri, Hardness-based flow stress and fracture models for numerical simulation of hard machining AISI 52100 bearing steel, Materials Science and Engineering A. 374 (2004) 1-2, 90-100

Materials Science Forum Vols. *** (2004) pp.438-442 online at http://scientific.net  2004 Trans Tech Publications, Switzerland Recent Developments in Tool Materials for High Speed Machining Z.Q.
Cermets work best in materials such as steels Advances in Materials Manufacturing Science and Technology 440 and ductile irons that produce a ductile chip.
Materials Science Forum Vols. *** 441 Ultra fine carbide and powder metallurgy high speed steel (PM HSS) will hold important positions in the field of solid tools used in high speed machining.
Advances in Materials Manufacturing Science and Technology 442 Super Alloy.
Mills: Journal of Materials Processing Technology, Vol. 56 (1996), p. 16 [3] X.

Journal of Materials Research and Tech., Vol. 5(2) (2016), pp. 159-169 [2] S.
Materials Today, Vol. 4(8) (2017), pp. 7155-7160 [5] S.
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Pershin et al., Synthesis of Al-Zr Alloys Via ZrO2 Aluminum-Thermal Reduction in KF-AlF3-Based Melts, Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science. 48.4 (2017) 1962-1969
Levashov et al., Self-propagating high-temperature synthesis of advanced materials and coatings, International materials reviews. 62.4 (2017) 203-239
[17] Su, Wei, et al., Preparation and sintering of WC–Co composite powders for coarse grained WC–8Co hardmetals, International Journal of Refractory Metals and Hard Materials. 45 (2014) 80-85
[18] Liu, Wenbin et al., Preparation of ultrafine WC–Co composite powder by in situ reduction and carbonization reactions, International Journal of Refractory Metals and Hard Materials. 27.1 (2009) 115-120
Solovev, The Study of Cement Concrete with Improved Properties Based on the Use of Astivated Silica Fume, Materials Science Forum, Vol. 992, (2020) 228-232.

A Novel Strategy for Preparation of Cu2(MII)(MIV)S4 Thin Films for Solar Cell: Sulfurization of Mixed Metal Oxides Precursor Synthesized by Combustion Method Xin JIN1, Li-Jian ZHANG1, Chun-Yan WU1, Yan ZHANG1, Guo-Shun JIANG1, Wei-Feng LIU1,a,*, Chang-Fei ZHU1,a,* 1,CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China aliuwf@ustc.edu.cn, bcfzhu@ustc.edu.cn *Corresponding author Keywords: Thin Films, Solar Energy Materials, Combustion Method, Band Gap, Chalcogenide.
Yun, et al., Materials Letters, 158 (2015) 58-61
Wei, Chemistry of Materials, 26 (2014) 3411-3417
Kim, Materials Letters, 162 (2016) 40-43
Chu, Journal of Materials Science: Materials in Electronics, 26 (2015) 3984-3988

Traditional materials for 3D printing include thermoplastics, ceramics, graphene-based materials, and metals, which enable the production of intricate parts with high precision.
Originally, these materials were composed of acrylates, which formed robust, linked structures.
On the other hand, further complications arise for brittle materials at the lower shelf zone.
Experimental Part The following results are from 2 different studies that have tested the two materials.
Thickett, Functional Materials for DLP-SLA 3D Printing Using Thiol–Acrylate Chemistry: Resin Design and Postprint Applications, Published April 7, 2022 ACS Applied Polymer Materials, https://doi.org/10.1021/acsapm.2c00358 [13] Serge Corbel, Olivier Dufaud, Thibault Roques-Carmes, Materials for Stereolithography, https:/doi.org/10.1007/978-0-387-92904-0_6 [14] by J Mogan, W.