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Abstract:采用以一定比例的ＨＮＯ３和ＨＣｌ為介質(zhì)，使鎢沉淀成鎢酸與雜質(zhì)分離，然后用碳粉吸附雜質(zhì)再進(jìn)行光譜測(cè)定的方法，對(duì)高純鎢（包括金屬鎢、三氧化鎢、鎢酸、鎢酸銨）中１５個(gè)雜質(zhì)元素Ｆｅ、Ｎｉ、Ｃｕ、Ｍｎ、Ａｌ、Ｖ、Ｃｒ、Ｃｏ、Ｃａ、Ｍｓ、Ｐｂ、Ｓｎ、Ｂｉ、Ｃｄ、Ｂｅ進(jìn)行了測(cè)定，取得了理想的結(jié)果，測(cè)定下限可達(dá)（０．１～０．５）×１０（－６）。

Abstract:ome new application fields of titanium for modernization life, such as titanium products in daily life, titanium-made high-grade fashion dress, fyame of glasses, wrist watch, bicycle, articls for stationery, recretion and sports, medical instruments for clinica and healthy medicine, as well as some Ti products for architecture and antomoble industry, etc. are introduced. Also, some opportunity and the way to deal with for further developing Ti application are discussed.

Abstract:研究了氮分壓對(duì)空心陰極離子鍍氮化鈦涂層性能的影響。結(jié)果表明：在１．３３×１０（－２）～２．２１×１０（－１）Ｐａ氮分莊范圍內(nèi)，顯微硬度隨氮分區(qū)增加而增加，在２×１０（－２）Ｐａ時(shí)顯微硬度出現(xiàn)最大值，而后隨氮分壓的增加，顯微硬度下降；隨著氮分區(qū)增加，氨化鈦涂層在Ｈ２ＳＯ４溶液中的抗腐蝕性能增加；氮分壓強(qiáng)烈影響ＴｉＮ織構(gòu)。

Abstract:Research results obtained in recent years concerning the preparation of powders and hydrogen absorbing electrode. the effects of partial substitution and phase transformation in matrix on electrochemical properties were reviewed.

Abstract:n this paper, the bond-parateric function and the size-factor X2=R0 proposed by Zhang Bangwei et al. are used to study the solid solubilities on the binary transition metals based alloys.1587 binary alloys are studied and it has been found that the soluble elements and insoluble elements can be separated by a parabola and ellipse two regularities are up to 86. 6 % and 90 %, respectively. Also, the parameters a,b, of parabola and parameters m, n, c and d of ellipse are disscused and it has been found that these parameters are proportional to the suitable parameters of each host metal well.

Abstract:he possible interior strengthening mechanisms related to 2091 Aluminium-Lithium alloy are discussed in detail in the present paper, and the analycal solutions of these mechanisms for the alloy strength are converted out. The reason why 2091 alloy has the higher ductility and mechanical properties than other kinds of Al-Li alloys is given in some extent of detail. Some basic methods improving the synthetical mechanical properties are also introduced.

Abstract:-7Ni-3Fe heavy alloy was prepared from the tungsten powders doped with different amounts of trace silicon. The behavior of trace silicon in the tungsten heavy alloy was investigated by using scanning electron microscope GEM) and X-ray photoelectron spectrom etry (XPS). The results showed that part of the trace silicon in the form of dispersed SiO2 particles was distributed in the binder phase of the alloy and the remaining in the state of elemental silicon was distributed in the tungsten grains forming a solid solution. It was found that the tungsten grains in the alloys prepared from undoped tungsten powders were covered by a thin layer of WO2 but no WO2 was detected in the alloys prepareds from doped tungsten powders. The mechanism of the formation and elim mation of WO2 was discussed.

Abstract:he rare-earth magnetic alloys of YTi(Fe(1-x)Cox)(11) system (x=0.0, 0. 15, 0.25, and 0.5) have been prepared and the optimal reaction condition has been worked out by using the method of coprecipitation-reduction diffusion.By studing the crystal structure with XRD and testing the Curie temperature and magnetization on the VSM of model M 155, it is shown that all the YTi(Fe(1-x)Cox)(11) system alloys has the crystal structure of ThMn12 type,the lattice parameters decrease and the Curie temperature increases with the Co addition amount increasing, the reduced saturated magnetization has a maximum at x=0. 15.

Abstract:he effects of two kinds of rare earth elements La and Yon the size as well as the morphology of tungsten particles during hydrogenolysis were investigated by using SEM, X-ray difftaction and IP(Instrument-determination of powder and porous-material). The results indicated that in tungsten powders, the La and Y exist in the forms of oxides(La2O3, Y2O3) and tungstates (La2W2O9, Y6WO(12)) and the most of tungsten powders are regular polyhedrons. The existence of La and Y hinders drastically the growth of tungsten particles during hydrogenolysis of blue W oxide, and the effect of Y is greater than that of La.

Abstract:研究了Ｗ對(duì)Ｆｅ－Ｓｉ－Ｂ非晶合金交流磁性的影響。討論了磁導(dǎo)率隨頻率及磁感應(yīng)強(qiáng)度的變化規(guī)律。分別在弱磁場(chǎng)及中、強(qiáng)磁場(chǎng)區(qū)域?qū)Γ撤N合金Ｆｅ（８２．１）Ｓｉ（２．２）Ｂ（１５．７）（１＃）、Ｆｅ（７９．８）Ｓｉ（２．５）Ｂ（１７．７）（２＃）和Ｆｅ（７３．７）Ｗ（１．３）Ｓｉ（３．０）Ｂ（２２．０）（３＃）進(jìn)行了磁損耗分離。結(jié)果表明，加入Ｗ，使磁譜曲線的下降幅度增加；磁導(dǎo)率隨磁場(chǎng)變化的峰值增大，出現(xiàn)峰值的磁場(chǎng)稍移向高場(chǎng)區(qū)；在中、強(qiáng)磁場(chǎng)區(qū)域，磁損耗分離曲線為一折線，轉(zhuǎn)折點(diǎn)對(duì)應(yīng)的頻率ｆ約為２０ｋＨｚ。

Abstract:The Sm2Fe(17)Nx compound shows the intrinsic magnetism either comparable with or superior to those of Nd2Fe(14)B compound. The Processing methods for Sm2Fe(17)Nx powders and magnets were mainly discusseed in this paper. The future development of Sm2Fe(17)Nx magnet has been estimated.

Abstract:在Ｈｅ氣保護(hù)下采用ＰＲＥＰ工藝制?。裕椋矗福粒欤保郑ǎ幔簦ィ┖辖鸱勰^察粉末表面冷凝組織特性，估算冷卻速率（Ｖｃ）和冷凝速率（Ｖｓ），并對(duì)其影響因素進(jìn)行了分析討論。結(jié)果表明，Ｖｃ值達(dá)到１０４～１０６Ｋ／ｓ，比在Ａｒ氣氣氛中的Ｖｃ值高。Ｖｓ值處在１．３１～１０．５７ｃｍ／ｓ范圍。二次樹枝晶臂間距（Ｓ）和初始β晶粒度（ｄ）隨Ｖｃ變化規(guī)律分別服從冪函數(shù)Ｓ＝３４．２１　和ｄ＝７２３　。當(dāng)粉末顆粒較大，Ｖｃ值較低時(shí)，結(jié)晶是完整樹枝狀，而當(dāng)粉末顆粒較小，Ｖｃ值較高時(shí)，結(jié)晶呈胞狀。這些結(jié)果表明，在Ｈｅ氣保護(hù)下的Ｐ