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Online since: October 2023
Authors: Yusril Yusuf, Mona Sari, Anisha Ashilawati, Laila Khoir, Reny Wahyuningsih
Therefore, the B-type CHA is commonly used for bone tissue engineering.
Therefore, all B-type CHA samples are candidates in bioceramic materials for bone tissue engineering applications.
Thus, B-type CHA has been expanded for bone tissue engineering applications.
Materials.
All B-type CHA samples based on eggshells are candidates in bioceramic materials for bone tissue engineering applications based on these characteristics.
Therefore, all B-type CHA samples are candidates in bioceramic materials for bone tissue engineering applications.
Thus, B-type CHA has been expanded for bone tissue engineering applications.
Materials.
All B-type CHA samples based on eggshells are candidates in bioceramic materials for bone tissue engineering applications based on these characteristics.
Online since: September 2013
Authors: Chun Hong Xu, Zhan Fu Jing
In the test of raw materials, the test of fly ash is involved, and fly ash is a material widely used in concrete.
Guangdong Building Materials, 2011 (1)
Analysis on the Mass Concrete Construction Technology Application to Water Conservancy Engineering [J].
Engineering Technology, 2012 (15)
Engineering Technology, 2012 (10)
Guangdong Building Materials, 2011 (1)
Analysis on the Mass Concrete Construction Technology Application to Water Conservancy Engineering [J].
Engineering Technology, 2012 (15)
Engineering Technology, 2012 (10)
Online since: November 2012
Authors: Jun Qing Liu, Jun Jie Xi, Hong Yu Liu
Research on Multi-objective Decision-making of Materials Selection for Green Manufacturing
Xi Junjie1, a, Liu Hongyu2, b and Liu Junqing3, c
1School of Mechatronics Engineering, Zhengzhou Institute of Aeronautical
Industry Management, Zhengzhou, 450015, China
2School of Mechanical Engineering and Automation,
University of Science and Technology Liaoning, Anshan, 114051, China
3Department of Automatic Control,
Shenyang Institute of Engineering, Liaoning, Shenyang, 110136, China
ajunjiexi@163.com, blhy_13@126.com, cjunqing_liu@126.com
Keywords: green manufacturing; green materials; materials selection; environmental harmony; multi-objective decision-making; constraint conditions
Abstract.
Materials selection for green manufacturing is a complicated system engineering.
Engineering material mainly contains metal material, inorganic non-metallic material, polymer material and so on.
Engineering material manufacture industry mainly contains metallurgy, chemistry and chemical engineering industry which all result in environmental pollution.
For scarce material sources, their substitute materials and new materials including engineering plastic, structural ceramics, and composite material should be chosen.
Materials selection for green manufacturing is a complicated system engineering.
Engineering material mainly contains metal material, inorganic non-metallic material, polymer material and so on.
Engineering material manufacture industry mainly contains metallurgy, chemistry and chemical engineering industry which all result in environmental pollution.
For scarce material sources, their substitute materials and new materials including engineering plastic, structural ceramics, and composite material should be chosen.
Online since: December 2010
Authors: Yu Li, Ping Yan Bian, Bo Zhao
Study on the Edge Quality Control in Grinding Engineering Ceramics
P.Y.
Introduction Engineering ceramic materials have excellent characteristics such as high strength, high hardness, low density, low expansion coefficient and abrasion resistance, corrosion resistance, thermal and chemical stability, etc, and it has become a new engineering materials widely used in aviation, petrochemical, instrumentation, machinery manufacturing industry and other new fields.
Glass ZrO2 ceramic 45 Steel Fig.1 Edge comparison diagram As can be seen, contrary to the ideal boundary of metal burr,the edge of glass,engineering ceramics and other hard brittle materials are weak step edge, or sometimes have the material stripping defects.
The results showed that: 1) Contrary to the ideal boundary of metal burr,the edge of glass,engineering ceramics and other hard brittle materials are faint of the steps, or sometimes have the material stripping defects. 2) The performance of nano- ZrO2 ceramics grinding is superior, the marks are smooth and neat, the material surface presents brittle & plastic mixed mode of material removal, but the edge area exists many micro-breakout pit. 3) The grinding wheel's vertical cutting into and cutting out the grinding edge of engineering ceramics are weak step edge.
Acknowledgements This work is financially supported by National Natural Science Foundation of China (No. 50975080)and Key Laboratory of Mechanical Engineering of Henan Province.
Introduction Engineering ceramic materials have excellent characteristics such as high strength, high hardness, low density, low expansion coefficient and abrasion resistance, corrosion resistance, thermal and chemical stability, etc, and it has become a new engineering materials widely used in aviation, petrochemical, instrumentation, machinery manufacturing industry and other new fields.
Glass ZrO2 ceramic 45 Steel Fig.1 Edge comparison diagram As can be seen, contrary to the ideal boundary of metal burr,the edge of glass,engineering ceramics and other hard brittle materials are weak step edge, or sometimes have the material stripping defects.
The results showed that: 1) Contrary to the ideal boundary of metal burr,the edge of glass,engineering ceramics and other hard brittle materials are faint of the steps, or sometimes have the material stripping defects. 2) The performance of nano- ZrO2 ceramics grinding is superior, the marks are smooth and neat, the material surface presents brittle & plastic mixed mode of material removal, but the edge area exists many micro-breakout pit. 3) The grinding wheel's vertical cutting into and cutting out the grinding edge of engineering ceramics are weak step edge.
Acknowledgements This work is financially supported by National Natural Science Foundation of China (No. 50975080)and Key Laboratory of Mechanical Engineering of Henan Province.
Online since: February 2008
Authors: Yun Feng Lin, Lei Liu, Wei Dong Tian, Run Liang Chen, Sheng Wei Li
However, these materials don't meet all the criteria of an
ideal bone tissue engineering scaffold.
Lin, et al: Key Engineering Materials Vol. 330-332 (2007), p. 1145 [9] C.
Liu, et al: Key Engineering Materials Vol. 330-332 (2007), p. 1173 [10] K.
Lin, et al: Key Engineering Materials Vol. 330-332 (2007), p. 963 [14] Y.
Liu, et al: Key Engineering Materials Vol. 330-332 (2007), p. 1109
Lin, et al: Key Engineering Materials Vol. 330-332 (2007), p. 1145 [9] C.
Liu, et al: Key Engineering Materials Vol. 330-332 (2007), p. 1173 [10] K.
Lin, et al: Key Engineering Materials Vol. 330-332 (2007), p. 963 [14] Y.
Liu, et al: Key Engineering Materials Vol. 330-332 (2007), p. 1109
Online since: October 2009
Authors: De Ren Yang, Xiang Yang Ma, Jia He Chen
Impurity Engineering of Czochralski silicon
Jiahe Chen1, a, Xiangyang Ma1, b and Deren Yang1, c
1
State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering,
Zhejiang University, Hangzhou 310027, People's Republic of China
a
jiahe_chen@hotmail.com, b
mxyoung@zju.edu.cn, c
mseyang@zju.edu.cn
Keywords: Czochralski silicon, impurity engineering, defect
Abstract.
The novel concept of "impurity engineering in CZochralski (CZ) silicon " for large scaled integrated circuits has been reviewed.
Thus, it is believed that by impurity engineering CZ silicon wafers can satisfy the requirment of ultra large scale integrated circuits.
Impurity engineering I: mechanical properties Nitrogen doping and germanium doping are well established to improve the mechanical properties of silicon wafers.
Figure 4 Schematic illustrations for the 'impurity engineering for internal gettering (IG) structure' in impurity-doped CZ silicon wafers.
The novel concept of "impurity engineering in CZochralski (CZ) silicon " for large scaled integrated circuits has been reviewed.
Thus, it is believed that by impurity engineering CZ silicon wafers can satisfy the requirment of ultra large scale integrated circuits.
Impurity engineering I: mechanical properties Nitrogen doping and germanium doping are well established to improve the mechanical properties of silicon wafers.
Figure 4 Schematic illustrations for the 'impurity engineering for internal gettering (IG) structure' in impurity-doped CZ silicon wafers.
Online since: January 2012
Authors: Bin Wang, Jian Jun Chen, Jie Tao
Because knowledge-based engineering is an effective intelligent design method, the paper systematically introduced the application and development of knowledge representation, knowledge reasoning, knowledge acquisition and other key technologies of knowledge engineering technology used in mold design field.
Knowledge-based engineering (KBE) is an important technology of promoting the engineering design intelligent and rapid.
Journal of Materials Processing Technology. 139, 81--89 (2003) [7] Chao Luo.: Research on Intelligent Design System for Aluminum Extrusion and the Key Technologies.
Journal of Materials Processing Technology. 63, 458--462(1997) [15] Ruisong Jiang, Dinghua Zhang, Wenhu Wang.: Framework of Intelligent Design System for Knowledge-Based Investment Casting Die of Aeroengine Turbo Blade.
Shanghai Jiao Tong University Press, Shanghai. (2000) [20] Jun Chen, Xiaoxiang Shi, Zhen Zhao.: Key technologies of Knowledge-Based Engineering and its application into modern intelligent die design.
Knowledge-based engineering (KBE) is an important technology of promoting the engineering design intelligent and rapid.
Journal of Materials Processing Technology. 139, 81--89 (2003) [7] Chao Luo.: Research on Intelligent Design System for Aluminum Extrusion and the Key Technologies.
Journal of Materials Processing Technology. 63, 458--462(1997) [15] Ruisong Jiang, Dinghua Zhang, Wenhu Wang.: Framework of Intelligent Design System for Knowledge-Based Investment Casting Die of Aeroengine Turbo Blade.
Shanghai Jiao Tong University Press, Shanghai. (2000) [20] Jun Chen, Xiaoxiang Shi, Zhen Zhao.: Key technologies of Knowledge-Based Engineering and its application into modern intelligent die design.
Online since: September 2003
Edited by: Lian Meng Zhang, Jing Kun Guo, Wei Hsing Tuan
Composite materials have come to play essential roles in various areas of industry and technology during the past few decades due to their excellent performance.
The 3rd cross-strait conference on composite materials was held on May 7-12, 2003, in Wuhan, China; sponsored by the Natural Science Foundation of China (NSFC).
This issue of Key Engineering Materials contains a collection of 105 selected papers from this conference.
The topics cover major aspects of composite materials, such as metal-matrix composites and ceramic-matrix composites; as well as polymer-matrix composites.
Investigation and Application of Excellent Performance Mg Rare Earth Alloys as a Structural Material
Online since: March 2007
Authors: Jian Meng, Li Min Wang, Yao Ming Wu, Qiu Ming Peng, Jie Yang, Da Qing Fang, Hai Feng Liu, Hong Jie Zhang
Ltd, 95 Dongfeng Street, Changchun 130011, China
almwang@ciac.jl.cn, bqmpeng@ciac.jl.cn, cYangjie@ciac.jl.cn, ddqfang@ciac.jl.cn,
eymwu@ciac.jl.cn, fLiuxf_fc@faw.com.cn, gjmeng@ciac.jl.cn, hhongjie@ciac.jl.cn
Abstract: Magnesium (Mg) alloys are becoming one of the key engineering materials for aerospace
and automotive industries because of their low density, high specific strength, excellent
machinability and good diecastability, etc.
Meanwhile, it is an environmental friendly material with lower energy consumption and recyclable.
As aforementioned characteristics, Mg alloys are used in a variety of structural applications including automotive, industrial, materials-handling, commercial and aerospace equipment.
Acknowledgement This work is supported by Chinese Academy of Science for Distinguished Talents Program, and The Science Program of the Promotes Northeast of CAS (KGCX2-SW-216) and The Key Science Foundation of Changchun (05GG54).
Hou, Materials Science Forum.
Meanwhile, it is an environmental friendly material with lower energy consumption and recyclable.
As aforementioned characteristics, Mg alloys are used in a variety of structural applications including automotive, industrial, materials-handling, commercial and aerospace equipment.
Acknowledgement This work is supported by Chinese Academy of Science for Distinguished Talents Program, and The Science Program of the Promotes Northeast of CAS (KGCX2-SW-216) and The Key Science Foundation of Changchun (05GG54).
Hou, Materials Science Forum.
Online since: July 2014
Authors: Bo Gao, Yu Chun Wang, Wen Qi Peng, Yan Liang Du, Ji Jun Gao, Huai Dong Zhou, Qing Yi Meng, Qi Jun Li, Shu Hua Yin
Based on the biological purification technology combined with the engineering measures, the enhanced nitrogen purification biological experiment is implemented in Wenyu River in Beijing.
The walls of eco-groove are covered with aluminum foil to prevent light in, and to simulate the working environment of the river ecological engineering.
The plants themselves can absorb some nitrogen and phosphorus nutrients through root system which is the effective way for ecological engineering to supplement carbon sources.
Through the comparison of adscititious biological materials and the blank group, we find that the denitrification effects are not significant.
Chinese Journal of Environmental Engineering[J], Vol.3(2009),1995-1999
The walls of eco-groove are covered with aluminum foil to prevent light in, and to simulate the working environment of the river ecological engineering.
The plants themselves can absorb some nitrogen and phosphorus nutrients through root system which is the effective way for ecological engineering to supplement carbon sources.
Through the comparison of adscititious biological materials and the blank group, we find that the denitrification effects are not significant.
Chinese Journal of Environmental Engineering[J], Vol.3(2009),1995-1999