纳米GaAs—SiO2镶嵌复合薄膜的制备

利用射频磁控共溅法制备了纳米ＧａＡｓ－ＳｉＯ２镶嵌复合薄膜，通过Ｘ射线衍射，透射电镜和Ｘ射线光电子能谱等手段研究了薄膜的结构及其与沉积时基片温度间的关系，结果表明，薄膜由晶态的ＧａＡｓ及非晶ＳｉＯ２组成，ＧａＡｓ在沉积过程中未明显氧化，且以纳米颗粒形成的均匀地弥散在ＳｉＯ２中；ＧａＡｓ的平均粒径依赖于沉积时的基片温度，获得了ＧａＡｓ的平均粒径在３～１０ｎｍ的ＧａＡｓ→ＳｉＯ２镶嵌复合薄膜。     

纳米GaAs—SiO镶嵌复合薄膜的发光特性

采用射频磁控共溅射法制备了纳米ＧａＡｓ－ＳｉＯ２镶嵌复合薄膜。通过Ｘ射线衍射、透射电镜观察和Ｘ射线光电子能谱等手段研究了薄膜的结构及其与沉积过程中基片温度间的关系。测量了薄膜的光致发光特性。表明，薄膜由晶态的ＧａＡｓ及非晶Ｓdisplay status两相组成，ＧａＡｓ在沉积过程中未明显氧化且以纳米颗粒形式均匀地弥散；ＧａＡｓ的平均粒径依赖于沉积时的基片温度。通过控制基片温度，成功地获得了ＧａＡｓ的平均粒径分     

GaAs颗粒镶嵌薄膜的制备及光吸收特性的研究

采用复合靶共溅射技术制备纳米ＧａＡｓ晶粒镶嵌在ａ－ＳｉＯ２中的复合薄膜。通过控制淀积时基片的温度，调节靶面ＧａＡｓ的百分比，可制备出不同ＧａＡｓ晶粒尺度与体积百分比的薄膜。     

脉冲准分子激光CuO－SnO_2薄膜沉积及其结构分析

采用脉冲准分子激光沉积（ＰＬＤ）技术，分别在Ｓｉ（１１１）单晶及玻璃基片上外延沉积了具有高ａ轴（２００）取向的ＣｕＯ掺杂的ＳｎＯ２薄膜。Ｘ射线衍射（ＸＲＤ）及透射电镜（ＴＥＭ扫描附件）分析表明：在Ｓｉ（１１１）片上沉积，４００～５００℃退火温度处理的薄膜，只有（２００）峰存在；当退火温度升高到６００～７００℃时，ＳｎＯ２的其余诸峰相应出现，薄膜呈多晶态，取向度降低，晶粒尺寸变大，晶粒分界明显．在玻璃基片上沉积的薄膜，经４００℃低温处理后，（２００）取向度很小；随着退火温度的升高，达到５００℃时薄膜呈高ａ轴（２００）取向生长，结晶度较好，晶粒分布均匀．     

脉冲准分子激光CuO—SnO2薄膜沉积及其结构分析

采用脉冲准分子激光沉积（ＰＬＤ）技术，分别在Ｓｉ（１１１）单晶及玻璃基片上外延沉积了具有高α轴（２００）取向的ＣｕＯ掺杂的ＳｎＯ２薄膜，Ｘ射线衍射（ＸＲＤ）及透射电镜（ＴＥＭ扫描附件）分析表明：在Ｓｉ（１１１）片上沉４００－５００℃退火温度处理的薄膜，只有（２００）峰存在；当退火温度升高一６００－７００℃时，ＳｎＯ２的其余诸峰相应出现。薄膜呈多晶态，取向度降低，晶粒尺寸变大，晶粒分界明显，在玻璃基     

常压MOCVD制备MgO薄膜的研究

本文首次报道用常压金属有机化学气相沉积（ＡＰ－ＭＯＣＶＤ）在Ｓｉ（１００），ＳｉＯ２／Ｓｉ（１００）和Ｐｔ／Ｓｉ（１００）衬底上外延高质量的ＭｇＯ薄膜。研究了衬底温度与薄膜的取向性关系和ＭｇＯ薄膜的潮解特性。高纯ｍａｇｎｅｓｉｕｍａｃｅｔｙｌａｃｅｔｏｎａｔｅ［ｂｉｓ（２，４－ｐｅｎｔａｎｅｔａｎｅ－ｄｉｏｎｏ）ｍａｇｎｅｓｉｕｍ］［Ｍｇ（ＣＨ２ＣＯＣＨ２ＣＯＣＨ３）２］作为金属有机源，扫描电镜（ＳＥＭ），透射电镜（ＴＥＭ）和Ｘ－ＲＡＹ衍射实验显示，在较低的衬底温度（～４８０℃）下一次淀积成单晶膜。薄膜均匀，致密，结晶性和取向性很好，衬底温度（Ｔｓ）在４００℃到６８０℃之间，在Ｓｉ（１００）衬底上生长的ＭｇＯ薄膜都具有［１００］取向，在Ｓｉ（１００）、ＳｉＯ２／Ｓｉ（１００）和Ｐｔ／Ｓｉ（１００）衬底上生长的ＭｇＯ薄膜也都具有［１００］取向。     

Al2O3—SiO2—TiO2复合陶瓷薄膜的制备与结构

本文利用Ｓｏｌ－Ｇｅｌ法制备了Ａｌ２Ｏ－ＳｉＯ２－ＴｉＯ２复合陶瓷薄膜，讨论了主要内容是体系成分（Ａｌ：Ｓｉ：Ｔｉ摩尔比）对落膜制备过程及结构的影响。通过分步水解法可以得到稳定的Ａｌ２Ｏ３－ＳｉＯ２－ＴｉＯ２复合溶胶，进而制备复合陶瓷薄膜。组分间的静电作用是溶胶凝结的原因。三组分中，Ｓｉ／Ｔｉ摩尔比是决定溶胶稳定性的主要因素。通过ＸＲＤ对薄膜的相组成进行了分析，表明复合薄膜由Ａｌ４Ｔｉ２ＳｉＯ１２     

IBAD薄膜与基体界面的显微结构

采用中能离子束辅助沉积（ＩＢＡＤ）技术，在单晶Ａｌ２Ｏ３（０００１）基片上沉积Ｍｏ膜，在ＧＡＡｓ（００１）基片上合成Ｆｅ１６Ｎ２薄膜，用ＨＲＥＭ等研究了Ｍｏｅａｊｄ－Ａｌ２Ｏ３（０００１），Ｆｅ１６ｎ２膜－ＧａＡｓ（００１）界面的显微结构，结果表明：Ｍｏ膜的晶粒呈细小柱状或纤维状，晶粒平均尺寸约８ｎｍ，Ｆｅ１６Ｎ２薄膜为等轴晶，晶粒平均尺寸约为１０ｎｍ，在Ｍｏ膜－Ａｌ２Ｏ３（０００１）界面及Ｆｅ１     

金属—绝缘体复合薄膜中的纳米颗粒形态控制

本文采用多靶磁控溅射仪旋转基片的方法，利用红外灯管加热基片，制备了不同基片温度的Ａｇ－ＳｉＯ２复合薄膜，采用ＴＥＭ分析了薄膜的微观结构并测定了薄膜的电阻率。研究结果表明：通过改变基片温度，可以控制Ａｇ－ＳｉＯ２复合薄膜中Ａｇ颗粒直径为１０￣１００ｎｍ；薄膜的电阻率亦可能过基片加热在１０＾２￣１０＾６μΩ·ｃｍ范围内改变。     

Si3N4陶瓷材料高温氧化层的分析

利用ＸＲＤ，ＥＰＭＡ，ＸＰＳ和ＳＥＭ的分析方法，研究了在１３００℃下氧化后Ｓｉ３Ｎ４陶瓷材料表面氧化层的组成的形貌，结果表明，Ｓｉ３Ｎ４陶瓷材料的表面氧化层是由方石英相和含有Ａｌ２Ｏ３，ＣａＯ等杂质的ＳｉＯ２质玻璃相所组成，其中ＳｉＯ２玻璃相听Ａｌ２Ｏ３，ＣａＯ等杂质的含量随氧化时间的增加而逐渐增加，同时在氧化层的内部都还存在部分Ｓｉ２Ｎ２Ｏ相。     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

Brainstorming for ISO Strategy 2016-2020

正Responding to ISO’s appeal for survey for the to-be-developed ISO Strategy Plan for 2016-2020,SAC hosted a special workshop over the needs and comments of various fi elds on June 8 in Beijing.The workshop was attended by ISO President-elect and Ansteel General Manager Zhang Xiaogang,SAC Vice-Administrator Yu Xinli,and 30 experts from     

CNAS Passes APLAC's PTP Review

正The review group of Asia Pacific Laboratory Accreditation Cooperation(APLAC)carried out a 4-day peer review of the proficiency testing provider(PTP)for China National Accreditation Service for Conformity Assessment(CNAS)from July 28 to 31,2014.CNAS passed the PTP review with excellent performance.Two senior peer reviewers of APLAC made a comprehensive,rigorous and detailed review of CNAS’s PTP accreditation activities,and made the on-spot inspection of the review groups in Shanghai and Shenzhen respectively.     

新闻(英文)

正China and Greece Sign the Standardization Cooperation Agreement Witnessed by Chinese Premier Li Keqiang and Greek Prime Minister Antonis Samaras,AQSIQ Minister Zhi Shuping and ELOT Chairman and Executive Director Angelos Tolkas signed the SAC-ELOT Standardization Cooperation Agreement.The Agreement is one of the critical cooperation documents signed during Li Keqiang’s visit in Greece,encouraging China and Greece to     

Win-Win Cooperation

正The Chinese Premier Li Keqiang's recent trip to the UK has reinforced the China-UK comprehensive strategic partnership;just as the British Prime Minister David Cameron put it,"the relationship is gaining in strength,depth and understanding"after a bucket of business deals being inked worth more than 30 billion US dollars.From the first agreement signing in 2004 to the new agreement of mutual standards recognition and adoption in     

Systematic Approach for Emerging Industry

正A national directory of standards complexes for strategic emerging sectors was recently developed and released jointly by 12governmental departments,namely,SAC,NDRC,MOST,MIIT,MEP,MOA,AQSIQ,State Forest Administration,State Administration of Science and Technology for National Defense,State Oceanic Administration and National Railway Administration.     

Strictest Pollutants Emission Standards

正Four new national standards on air pollutant emission control offi cially issued by the Ministry of Environment Protection(MEP)together with AQSIQ and SAC has been brought into force from July 1,2014.The Emission standard for air pollutants of coal-burning,oil-burning and gasfi red boilers,which is the strictest emission standard historically,will tackle the stubborn pollution problem of boilers and waste incineration in most of China’s regions.     

Instructions to Authors

New Carbon Materials is a bimonthly journal published with the permission of the Ministry of Science and Technology and of the State News and Publication Agency.The journal is sponsored by the Institute of Coal Chemistry,Chinese Academy of Sciences,and is published by Science Press.Aims and Scope     

Progress on Standards Copyright Protection

正Recently,National Copyright Administration of China(NCAC)has rewarded 215 organizations and 179 individuals for their outstanding efforts on investigating standards copyright infringement and piracy in 2013.Hua Jianhua,the Deputy-Director of National Standards Copyright Protection Workgroup Office won a third prize of the national individual award.In 2012,SAC set up the national standards copyright protection working group,and developed policies to crack down standards infringement and piracy behaviors and to strengthen standards copyright protection.