Thediscovery ofthefirstFe-based ferrom agneticam orphousalloy in 1966 had m ade an im pacton conventionalm agnetic m aterialsbecause ofitsuniqueproperties. Since then, a num berof am orphousm agneticm aterialshavebe...Thediscovery ofthefirstFe-based ferrom agneticam orphousalloy in 1966 had m ade an im pacton conventionalm agnetic m aterialsbecause ofitsuniqueproperties. Since then, a num berof am orphousm agneticm aterialshavebeen successfully developed and used in aw ide variety ofapplica- tions. Abriefreview ofR& Dactivitieson am orphoussoftm agneticm aterialsin Chinaisgiven from the beginning to the presentin a som ew hatchronologicalorder, followed by a briefintroduction to their applicationson electric and electronicindustries. An analysis and aprospectofChinesem arket ofsuch am orphous m aterials are also presented.展开更多
The application of lead as tem porary w ater - sealing m aterial for the stan dpipes in under ground mine is reported . It is considered that lead is a good w ater - sealing m aterial in un derground mine , especia...The application of lead as tem porary w ater - sealing m aterial for the stan dpipes in under ground mine is reported . It is considered that lead is a good w ater - sealing m aterial in un derground mine , especially for irregular opening with high - pressure rushing w ater . Leadseal is cheap , easy to use and less har m ful to w orkers an d environ m ent and m ay have widerapplication .展开更多
Polycrystalline titanium oxide films are fabricated on silicon by thermally oxidizing titanium.The current- voltage and capacitance- voltage characteristics of the Ag/Ti Ox/Si/Ag capacitors are m easured.The thicknes...Polycrystalline titanium oxide films are fabricated on silicon by thermally oxidizing titanium.The current- voltage and capacitance- voltage characteristics of the Ag/Ti Ox/Si/Ag capacitors are m easured.The thickness of the titanium oxide films arranges from15 0 nm to2 5 0 nm,and their dielectric constants are within40～ 87.As the oxida- tion tim e is shortened,the fixed charges of the titanium oxide films become less and the leakage current characteris- tics becom e better.展开更多
A genetic neural net work m odel about design of Mg content in the alloy , based on tested databetw een Mg and tensile intensity or elongation in Zn 27 % Al alloy , has been established . Theresult has sho w n th...A genetic neural net work m odel about design of Mg content in the alloy , based on tested databetw een Mg and tensile intensity or elongation in Zn 27 % Al alloy , has been established . Theresult has sho w n that the genetic neural netw ork is a better an d m ore applied method for m a terials design than the regress analysis .展开更多
文摘Thediscovery ofthefirstFe-based ferrom agneticam orphousalloy in 1966 had m ade an im pacton conventionalm agnetic m aterialsbecause ofitsuniqueproperties. Since then, a num berof am orphousm agneticm aterialshavebeen successfully developed and used in aw ide variety ofapplica- tions. Abriefreview ofR& Dactivitieson am orphoussoftm agneticm aterialsin Chinaisgiven from the beginning to the presentin a som ew hatchronologicalorder, followed by a briefintroduction to their applicationson electric and electronicindustries. An analysis and aprospectofChinesem arket ofsuch am orphous m aterials are also presented.
文摘The application of lead as tem porary w ater - sealing m aterial for the stan dpipes in under ground mine is reported . It is considered that lead is a good w ater - sealing m aterial in un derground mine , especially for irregular opening with high - pressure rushing w ater . Leadseal is cheap , easy to use and less har m ful to w orkers an d environ m ent and m ay have widerapplication .
文摘Polycrystalline titanium oxide films are fabricated on silicon by thermally oxidizing titanium.The current- voltage and capacitance- voltage characteristics of the Ag/Ti Ox/Si/Ag capacitors are m easured.The thickness of the titanium oxide films arranges from15 0 nm to2 5 0 nm,and their dielectric constants are within40～ 87.As the oxida- tion tim e is shortened,the fixed charges of the titanium oxide films become less and the leakage current characteris- tics becom e better.
文摘报道了窄条宽选区生长有机金属化学气相沉积 (NSAG- MOCVD)成功生长的 In P系材料 ,并提出在 NSAG-MOCVD生长研究中 ,引入填充因子的必要性 ,给出速率增强因子随填充因子变化的经验公式 ,计算得出速率增强因子随填充因子的变化关系 .与实验结果作了比较 ,发现 In P的速率增强因子主要取决于掩膜宽度 ,In Ga As P的速率增强因子不仅与掩膜宽度有关 ,同时也依赖于生长厚度 。
文摘A genetic neural net work m odel about design of Mg content in the alloy , based on tested databetw een Mg and tensile intensity or elongation in Zn 27 % Al alloy , has been established . Theresult has sho w n that the genetic neural netw ork is a better an d m ore applied method for m a terials design than the regress analysis .
