{"title":"Influence of Annealing on Zn1-Xcuxo (X=6.27%) Thin Films by Sol-Gel Method","authors":"Wang Xiaoyang, Ren Keming, Z. Zhen","doi":"10.2174/1874088X01509010091","DOIUrl":"https://doi.org/10.2174/1874088X01509010091","url":null,"abstract":"Using the sol-gel method on glass substrate were prepared under different annealing temperature of the thin film Zn1-xCuxO (x = 6.27%). Using X-ray diffraction (XRD), atomic force microscopy study annealing on microstructure of the thin films, the influence of surface topography. The results show that the annealing temperature did not change the wurtzite structure of ZnO, 400 degrees of annealed film density uniform, best film. In the transmission spectra of zno thin films, the transmittance in the visible light range along with the change of the annealing temperature is not big, and the absorption edge of blue shift. From the point of light at room temperature to spectrum, annealing temperature changes with photoluminescence peak position, other did not significantly change the ZnO thin film luminescence peak position, but make zinc deficiency increased with annealing, visible region photoluminescence peak strength obvious enhancement.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"12 1","pages":"91-94"},"PeriodicalIF":0.0,"publicationDate":"2015-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74906612","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}
{"title":"Research on Static Compression Test of Polyurethane Foam/Honeycomb Paperboard Composite Material","authors":"W. Ju, Li Jifeng, Lv Lei","doi":"10.2174/1874088x01509010064","DOIUrl":"https://doi.org/10.2174/1874088x01509010064","url":null,"abstract":"Objective: To study the mechanical behavior and energy absorption ability in the static compression test of polyurethane foam/Honeycomb paperboard composite material. Methods: The static compression test of polyurethane foam/honeycomb paperboard composite material are conducted by electronic universal testing machine. The mechanical behavior under the conditions of static compression and the influence factors of composite material static cushioning properties were analyzed. Then, a comparison was made between composite materials and simple materials in the respect of the energy absorption ability. Results: The yield stress, strength and other indicators of foam/honeycomb paperboard have doubled growth after filling polyurethane. The aperture size is the main influence factor of static cushioning properties of composite material. Conclusion: The energy absorption amount of composite materials is about 1.85 times than the total energy of two simple materials.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"28 1","pages":"64-70"},"PeriodicalIF":0.0,"publicationDate":"2015-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91053037","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}
{"title":"Effect of Magnetic Field and Temperature on the Exchange Bias in Phase-Separated Nd1-xSrxCoO3(x=0.10, 0.15)","authors":"Yiyun Yang","doi":"10.2174/1874088X01509010056","DOIUrl":"https://doi.org/10.2174/1874088X01509010056","url":null,"abstract":"The exchange bias phenomena of phase-separated Nd1-xSrxCoO3(x=0.10, 0.15) samples were systematically investigated in this paper. The samples were prepared using conventional solid state reaction method. When the Nd1- xSrxCoO3 samples cooled down in magnetic field below freezing temperature, the hysteresis loops shift along the magnetic field axis. Moreover, exchange bias of Nd1-xSrxCoO3 is strongly dependent on the field and the temperature. The influence of magnetic field on the relative ratio of the coexisting phases may be responsible for these behaviors. Therefore, our study confirms that, in phase-separated system, the exchange coupling at the interface between the ferromagnetism clusters and the spin glass regions may induce interfacial exchange anisotropy.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"18 1","pages":"56-59"},"PeriodicalIF":0.0,"publicationDate":"2015-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80982062","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}
{"title":"Effects of Composite Catalyst Co2B/TiO2 on Hydrolysis of NaBH4","authors":"Yong Li, Yuxin Zhang, Yuxing Gu, Yufei Cai, Ruizhu Zhang, Xueping Zheng","doi":"10.2174/1874088X01509010060","DOIUrl":"https://doi.org/10.2174/1874088X01509010060","url":null,"abstract":"For the purpose of improving hydrogen release capacity of NaBH4, hydrogen generation performance of NaBH4 was catalyzed by Co2B and TiO2 compound with different mole ratio and percentage composition are investigated. The experiment mainly concentrated in the hydrogen generation rate and the hydrogen generation volume. The results indicate that the effects of hydrogen release of NaBH4 when the proportions and amount of Co2B/TiO2 are not obvious. Changing the proportions and the amount, the amount of hydrogen release by hydrolysis of NaBH4 are between 343375ml. However, the study on the rate of hydrogen release finds that the effects of the proportion and amount of the compound catalyst on the rate of hydrogen release are very marked. The rate of hydrogen release of the catalyst samples presents an obvious increase when the amount of Co2B/TiO2 is between 1-4%. Among all the samples of compound catalyst, the rate of hydrogen release of the sample with 5% Co2B/2TiO2 is the largest.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"82 1","pages":"60-63"},"PeriodicalIF":0.0,"publicationDate":"2015-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85134764","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}
{"title":"Design and Mechanics Analysis of Moving Mechanism of Inspection Robot for Thin Coal Seam","authors":"Shang Deyong, Zhao Jianwei, F. Xun","doi":"10.2174/1874088X01509010043","DOIUrl":"https://doi.org/10.2174/1874088X01509010043","url":null,"abstract":"The inspection robot for thin coal seam can replace workers to make the daily inspection in fully mechanized mining surface. Based on the narrow and poor environment of thin coal seam, we design a joint swing arm inspection robot, which is able to adapt to the unstructured terrain in thin coal seam. The structure of the moving mechanism of the inspection robot has been designed. It can be realized that there are two DOF for moving on a single drive central axis through design of the shaft inside and shaft sleeve outside. The strength check and the modal analysis about the key parts of the moving mechanism such as the hollow shaft sleeve and the drive shaft are made by Ansys Workbench. According to the analysis results, the maximum stress caused by internal load and external impact load is far less than the yield strength of the material. The modal shape diagram shows that, when the meshing frequency and the external excitation frequency is much less than the first-order natural frequency of the parts, there will be no resonance and noise. The analysis results show that the design is reasonable and reliable.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"11 1","pages":"43-48"},"PeriodicalIF":0.0,"publicationDate":"2015-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75273531","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}
{"title":"Principle Analysis and Parameter Optimization for Uuderactuated End-Effector Manipulator for Apple Picking","authors":"Yu Ya-xin, Wu Fei, Zhu Rong, Zhang Fei","doi":"10.2174/1874088X01509010050","DOIUrl":"https://doi.org/10.2174/1874088X01509010050","url":null,"abstract":"In this paper, the mechanical structure of an underactuated end-effector manipulator for apple-picking is presented. The structure is consisted of three identical fingers which are driven by one motor. Each finger is formed by three joints which are connected with connecting bar and gears. With operation of grasp and twist executed by the driven fingers, apple-picking action completed. Mathematical model of the mechanical structure is proposed. Kinematics simulation & optimization software which have a Human-Computer Interaction interface is developed with Visual Basic visualization platform. Parameters which affect enveloping space mostly are analyzed .With processing and analyzing data which get from the software, a set of optimum structure parameters are obtained. A sample machine of the End-effector Manipulator which is used for testing purpose is designed according to the optimum structure parameters.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"93 1","pages":"50-55"},"PeriodicalIF":0.0,"publicationDate":"2015-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81357744","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}
{"title":"Influence of Holding Time on Properties of Cemented Carbide- Polycrystalline Diamond Compact Joints","authors":"Jia Qianzhong, Li Man, Qu Fuzheng, Z. Hongtao","doi":"10.2174/1874088X01509010033","DOIUrl":"https://doi.org/10.2174/1874088X01509010033","url":null,"abstract":"The influences of brazing holding time on properties of cemented carbide-polycrystalline diamond (PCD) compact joints were investigated in this study. The microstructure and phase composition of joints were investigated by scanning electron microscopy, electron probe microanalyzer, and X-ray diffraction. Microstructural investigations revealed Ag-based solid solution, Cu-based solid solution, Cu0.64Zn0.36, and a small amount of MnNi phase at the joint interface. The max shear strength of brazed joints 350.6 MPa was determined in the samples joined at 15 s, which was partially due to the dispersion strengthening effect of gray-black grains containing Cu-based solid solution, Cu0.64Zn0.36 and MnNi phase in the joints. Equal-area-circle grain diameter of the gray-black grains grew with longer holding time, whereas the shear strength decreased because of the formation of continuous intermetallic compounds layer along the joint boundary. Thermal damage of the PCD layer also deteriorated with increased holding time, and shorter holding time was preferable in the production.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"106 1","pages":"33-38"},"PeriodicalIF":0.0,"publicationDate":"2015-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75739051","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}
Xiao Yanjun, Liu Rui, S. Haiping, Jingjing Ran, Zhuang Jiayu
{"title":"The Characteristics of Perlite Sound Absorption Board Formed By Vibration Molding","authors":"Xiao Yanjun, Liu Rui, S. Haiping, Jingjing Ran, Zhuang Jiayu","doi":"10.2174/1874088X01509010039","DOIUrl":"https://doi.org/10.2174/1874088X01509010039","url":null,"abstract":"This paper put forward a scheme to form perlite sound absorption boards by vibration molding according to the material properties and the characteristics of vibration forming method. In the trial, the feasibility and reliability of this method were confirmed by studying on the effect law of the working pressure, frequency and vibration force to the quality of the perlite sound absorption board. Besides, a series of recommended parameters better to forming was proposed. Through the discussion on the characteristics of the perlite sound absorption board after vibration molding, it is verified that different molding methods have a great influence on the quality and performance of the perlite sound absorption board. In addition, the conclusion which provides a basis for further research on forming method of similar boards shows that the density of the finished products formed by vibration molding method is more uniform.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"1 1","pages":"39-42"},"PeriodicalIF":0.0,"publicationDate":"2015-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83289708","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}
{"title":"Thermal Decomposition Kinetics of Poly(L-lactic acid) after HeatTreatment","authors":"Yan-Hua Cai, Yunxiao Xie, Ying Tang, Lisha Zhao","doi":"10.2174/1874088X01509010028","DOIUrl":"https://doi.org/10.2174/1874088X01509010028","url":null,"abstract":"Thermal decomposition behavior of Poly(L-lactic acid) (PLLA) and PLLA composites after different heat treatment were investigated using thermogravimetric analysis. Firstly, the thermal decomposition results of neat PLLA showed that the decomposition of PLLA was a first-order kinetic reaction, and thermal decomposition kinetics indicated that the heat treatment significantly affected activation energy of thermal decomposition of PLLA. The measurement results also exhibited that the onset decomposition temperature of PLLA treated below 115 oC was lower than that of the pristine PLLA. Then, the effect of additive CaCO 3 on the thermal decomposition behavior of PLLA was evaluated. The addition of CaCO 3 could significantly improve the crystallization performance of PLLA, but the CaCO 3 did not change the decomposition trend of PLLA, and the thermal decomposition behavior of PLLA/CaCO 3 composites after isothermal heat treatment was similar to that of PLLA. However, the thermal decomposition activation energy of PLLA/CaCO 3 is lower than that of PLLA.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"35 1","pages":"28-32"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77080931","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}