2012 7th International Forum on Strategic Technology (IFOST)最新文献_第8页

Compaction pressure influence on the sintering of bioceramic materials 压实压力对生物陶瓷材料烧结的影响

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357556

M. Ivin, V. Vereschagin, V. Ignatov

{"title":"Compaction pressure influence on the sintering of bioceramic materials","authors":"M. Ivin, V. Vereschagin, V. Ignatov","doi":"10.1109/IFOST.2012.6357556","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357556","url":null,"abstract":"The use of ceramic materials varies and is determined by their properties and area of application. Orthopedics and traumatology have demand for porous materials for reconstruction of osseous defects. The material most closely fitting the natural bone in its structure and biological properties is hydroxyapatite HA (Ca5(PO4)3OH) and triple-calcium phosphate (Ca3(PO4)2) traditionally used to produce calcium-phosphate ceramics. High-temperature reactions lead to obtaining coarse-crystalline material with minimum porosity. Preparation of calcium-phosphate materials with large specific surface of the material contributes to the active bone formation compared to the dense calcium-phosphate ceramics. It was determined that compacting pressure and the packing index depends on the dispersion of materials. When compaction pressure is increased the open porosity of the material decreases by 10-15%. When sintering dense ceramics in the temperature range of 1100-1300°C the strength of the material samples increases to 130-160 MPa and open porosity decreases to 8-10%; total is 25-40% It characterizes an intensive sintering process in this temperature range. Introducing a pore-forming agent and sintering at 1250-1350°C showed that the strength improves with the increase of sintering temperature, while the open porosity ranges from 20-40% and the pore size corresponds to the size of the particles of a pore-forming agent. The results of the work allowed establishing the regularity of the influence of the quantity of pore-forming additives, sintering temperature, and the packaging index on the process of adjusting the size and number of pores for obtaining HA ceramics.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131302626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling of output power in a resonant microwave compressor with the transformation of the oscillations 基于振荡变换的谐振式微波压缩机输出功率建模

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357774

V. Igumnov, V. Avgustinovich, S. Artemenko, S. Novikov, Y. Yushkov

引用次数: 2

Preparation of NiO coated aluminum borate whiskers by a solgel process and an ultrasonic dispersion technique 溶胶凝胶法和超声分散法制备NiO涂层硼酸铝晶须

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357481

H. Yue, E. Guo, L. P. Wang, F. Kang, Y. K. Guo, Z. Yu

引用次数: 1

Synthesis of crystalline phases in the system «carbon-nitrogen» in a hypervelocity electric discharge plasma jet 超高速放电等离子体射流中“碳-氮”体系结晶相的合成

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357548

A. Sivkov, A. Pak, I. Shanenkov, D. Nikitin, Y. Kolganova

引用次数: 0

A new approach for collaborative Enterprise Architecture development 协作式企业架构开发的新方法

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357672

V. Agievich, V. Taratukhin, J. Becker, R. Gimranov

引用次数: 13

The control system of industrial plant for large reflectors ion-plasma coating 大型反射器-等离子涂层工业装置控制系统

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357781

O. Paschenko, A. Soloviev, S. Yudakov

引用次数: 1

Effect of RE element addition and processing parameters on the shear strength and interfacial IMCs of SAC solder joints 稀土元素添加量及工艺参数对SAC焊点抗剪强度及界面IMCs的影响

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357490

Yandan Zhu, Lifeng Wang, Yang Liu, Ye Lv

{"title":"Effect of RE element addition and processing parameters on the shear strength and interfacial IMCs of SAC solder joints","authors":"Yandan Zhu, Lifeng Wang, Yang Liu, Ye Lv","doi":"10.1109/IFOST.2012.6357490","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357490","url":null,"abstract":"The reliability of SAC lead-free solder joints are believed to be greatly influenced by the interfacial intermetallic compounds (IMCs) between solders and substrates. Our previous works investigated the effects of minimal rare earth (RE) elements addition on the interfacial IMCs under different aging time. Experimental results showed that the appropriate RE content is 0.07wt% La in Sn-0.3Ag-0.7Cu (SAC0307). In this paper, the influences of reflow parameters and Ce addition on the IMCs of SAC0307-0.07La/Cu solder joints were studied. The morphologies of IMCs were characterized by metallographic microscope (OM) and scanning electron microscope (SEM). Besides, the shear strength of the solder joints was evaluated by the shear tests. In comparison purpose, all the solder balls were prepared under the same conditions. The results showed that the thicknesses of the IMCs increased following the linear law and the shear strength varied under the parabolic law with the increase of reflow time. Meanwhile, the shear strength of the solder joints increased almost linearly with the increase of the cooling rate. The main failure mode was ductile fracture when the shear speed was 0.05mm/s.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"270 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124370497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use of variative modeling for the identification of random signals 使用变分模型来识别随机信号

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357662

V. Gubarev, O. Alsova, N. V. Abalov, G. A. Melnikov

引用次数: 1

Study on ambient air quality in the Erdenet city 额尔登特市环境空气质量研究

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357686

D. Bolor-Erdene, D. Ganbaatar, D. Shagjjamba, N. Tugjsuren

引用次数: 0

Effect of advanced thermal management systems on hybrid electric drive units 先进热管理系统对混合动力驱动装置的影响

2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357678

W. Nessim, Fujun Zhang, Zhao Chang-lu, Zhu Zhenxia

{"title":"Effect of advanced thermal management systems on hybrid electric drive units","authors":"W. Nessim, Fujun Zhang, Zhao Chang-lu, Zhu Zhenxia","doi":"10.1109/IFOST.2012.6357678","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357678","url":null,"abstract":"In recent years, a significant interest in hybrid electric power unit has arisen globally due to its reliability and efficiency. This paper will discuss the benefits of using advanced thermal management systems in hybrid electric drivetrain, and the different control strategies that can be used to enhance system performance. A detailed one dimensional (1D) simulation model for power split hybrid electric system was developed which consists of three cooling circuits. This model is characterized by a complete modularity and permits the simulation of any new design configuration to investigate the effect of advanced thermal management on system performance. Proportional Integration Derivative (PID) module was used to apply the control strategies. The system behavior has been optimized using Design of Experiment (DoE) method. The simulation results showed a superb fuel economy (4:11) % that solves the problems of high operating costs, also decreasing time of cold start by 50% and increasing the high temperature of the coolant up to 125°C. The motor and generator temperature controlled to the optimum temperature which operate them at the maximum efficiency. These results can be used to be the basis of the final system layout and thermal management strategy.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132623028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0