HIGH TEMPERATURE CORROSION OF PREOXIDIZED Ni-Al ALLOY IN CHLORINE

ＨＩＧＨＴＥＭＰＥＲＡＴＵＲＥＣＯＲＲＯＳＩＯＮＯＦＰＲＥＯＸＩＤＩＺＥＤＮｉ－ＡｌＡＬＬＯＹＩＮＣＨＬＯＲＩＮＥＨＩＧＨＴＥＭＰＥＲＡＴＵＲＥＣＯＲＲＯＳＩＯＮＯＦＰＲＥＯＸＩＤＩＺＥＤＮｉ－ＡｌＡＬＬＯＹＩＮＣＨＬＯＲＩＮＥ￥Ｔｕ，Ｊｉａｎｇｐｉ...     

The Studies on Al2O3—SiO2 Based Castables Containing Andalusite

The studies on the linear change,cold MOR and the refractoriness under olad of the Al23-SiO2 based castables which contain andalusite were carried out.The results show that the linear change at over 1400℃ changes from negative value to positive if the castables contain over 10% an-dalusite;the higher the addition of andalusite in the castables,the larger is the expansion;The re-fractoriness under load increase obviously with the increasing of the andalusite content in the casta-bles;meanwhile,cold MOR and cold crushing stuength decrease as a result of the large volume expansion.     

第四纪地质样品的ESR测年法

本文介绍了ESR测年法的发展、现状以及此方法的优越性。介绍了电子自旋共振的基本原理及ESR测年法的基本原理。并通过对周口店石笋样品年龄(6×10~4a)的测定具体介绍了此方法的实际运用过程。最后,就ESR测年法的一些有关问题进行了探讨。     

SUBSTRATE MATERIALS FOR POLY-CSiTF SOLAR CELLS： OPTIMIZATION OF SILICON SHEET FROM POWDER

1.IntroductionIn recentyearspolycrystalline silicon thin film solarcells(poly-CSiTF)have attracted m ore andm ore attention foritsrelative high conversion efficiency and low costprospect.The costofsilicon m ate-rialtakesone third ofthe totalcostofw afer-b…     

Effect of the catalyzing combustion of coke breeze on the energy saving in sinter process

Ａｓｏｎｅｏｆｔｈｅｌａｒｇｅｓｔｅｎｅｒｇｙｃｏｎｓｕｍｐｔｉｏｎｐｒｏ ｃｅｓｓｅｓｉｎｔｈｅｉｒｏｎａｎｄｓｔｅｅｌｉｎｄｕｓｔｒｙ ,ｓｉｎｔｅｒｉｎｇｍｉｌｌｓ′ｅｎｅｒｇｙｃｏｎｓｕｍｐｔｉｏｎａｃｃｏｕｎｔｓｆｏｒｓｏｍｅ 1 0 %ｏｆｔｈｅｔｏｔａｌｆｏｒｓｔｅｅｌｐｒｏｄｕｃｔｉｏｎ[1] .Ｈｏｗｅｖｅｒ,ｔｈｅｅｎｅｒｇｙｃｏｎｓｕｍｐｔｉｏｎｉｎｓｉｎｔｅｒｉｎｇｃｏｖｅｒｓｓｏｌｉｄｆｕｅｌｓ,ｇａｓｅｏｕｓｆｕｅｌｓ,ｅｌｅｃｔｒｉｃｉｔｙａｎｄｗａｔｅｒｃｏｎｓｕｍｐｔｉｏｎ ,ｅ…     

洛川黄土中陷阱电子的平均寿命和ESR年代学

本文采用等温退火的实验方法,特洛川黄土样品在同一温度下加热退火不同的时间,然后在不同的温度下重复实验,得到样品中石英颗粒的E＇中心在室温下的平均寿命为6.66×10~8a,活化能为1.35eV,频率因子为3.67×10~6,证明了洛川黄土的ESR年龄值的可信性。     

Thermodynamics Behavior of Titanium for BOF Smelting Bearing Steel

Titaniumnitride is a kind of hard and crispyin-clusion, whichis harmful to the fatigue life of steelandis related to the titaniumand nitrogen contentsof steel ,that is ,the amount of titanium nitride in-clusion increases with the increase of titanium andnitrogen contents of steel[1 -3]. The nitride is moreharmful than oxides with the same di mension.It isnoted from experi ment results of the fatigue life ofbearing steel that when the titaniumcontent decrea-ses from40×10-6to 10×10-6,the fatig…     

Source and location mechanism for lode gold deposits hosted in metamorphic rocks in northeastern Hunan, China

ＮｏｒｔｈｅａｓｔｅｒｎＨｕｎａｎｉｓａｎｉｍｐｏｒｔａｎｔｍｅｔａｌｌｏ ｇｅｎｉｃａｒｅａｏｆｌｏｄｅｇｏｌｄｄｅｐｏｓｉｔｓｈｏｓｔｅｄｉｎｍｅｔａｍｏｒ ｐｈｉｃｒｏｃｋｓｉｎｓｏｕｔｈＣｈｉｎａ .Ｔｈｅｇｅｎｅｓｉｓｏｆｌｏｄｅｇｏｌｄｄｅｐｏｓｉｔｓｈｏｓｔｅｄｉｎｍｅｔａｍｏｒｐｈｉｃｒｏｃｋｓｉｓｓｔｉｌｌａｓｕｂｊｅｃｔｏｆｃｏｎｓｉｄｅｒａｂｌｅｄｅｂａｔｅ .Ｔｈｅｒｅａｒｅｍａｉｎｌｙｔｗｏｏｐｐｏｓｉｔｅｇｅｎｅｔｉｃｈｙｐｏｔｈｅｓｅｓ:ｈｏｓｔｒｏｃｋｓｏｕｒｃｅｄｇｅ…