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high temperature solution     
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  高温溶液
     Nd3+:NaLa(WO4)2 crystals with a dimension up to 7 mm were grown from a high temperature solution using a double-crucible method.
     用双坩埚法从高温溶液里生长出线度达7 mm的Nd3+: NaLa(WO4)2晶体.
短句来源
     Single crystals of Pb(Fe_(1/2)Nb_(1/2))O_3 (PFN) in size of 3 mm×3 mm×3 mm were grown by high temperature solution method with slow cooling from a molten flux of PbO and applied the temperature oscillation during nuclei.
     采用高温溶液晶体生长法,选择PbO为助熔剂,以缓慢冷却法获得过饱和度并施以温度振荡,生长出典型尺寸为3mm×3mm×3mm的铁电磁体Pb(Fe1/2Nb1/2)O3单晶。
短句来源
     Two semi rigid copolyesters containing mesogenic group were synthesized via high temperature solution polycondensation of 4,4′ bis(6 hydroxy hexoxy) biphenyl(BHHBP) and terephthaloyl chloride(TPC) as well as BHHBP and 4,4′ (terephthaloyldioxy) dibenzoyl dichloried (TOBC).
     通过介晶单体 4 ,4′-双 (6-羟己氧基 )联苯 (BHHBP)分别与对苯二甲酰氯 (TPC)及 4 ,4′-(对苯二甲酰氧基 )二苯甲酰氯 (TOBC)进行高温溶液缩聚反应合成了两种含介晶基团的半刚性共聚酯 BHHBP/ TPC与 BHHBP/TOBC。
短句来源
     Nb5+ and Nd3+ doped KTh(KTNNP)crystals have been grown by slow-cooling method of high temperature solution. The relationship between the growth habit and the dopant have been studied.
     本文采用高温溶液降温法生长出了掺Nb5+和Nd3+不同浓度的KTP(简称KTNNP)晶体,研究了晶体的生长习性与掺质种类的关系。
短句来源
     The Growth Mechanism of the KTP Crystal in a High Temperature Solution
     高温溶液中KTP晶体生长机制的研究
短句来源
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  高温熔液
     HIGH TEMPERATURE SOLUTION GROWTH AND STRUCTURE CHARACTERIZATION OF FERROELECTROMAGNET Pb(Fe_(1/2)Nb_(1/2))O_3 SINGLE CRYSTALS
     铁电磁体Pb(Fe_(1/2)Nb_(1/2))O_3单晶高温熔液法生长及其结构特征研究
短句来源
     BaAlBO_3F_2 crystal(BABF)was grown by the high temperature solution method.
     采用高温熔液法生长BaA lBO3F2晶体(简称BABF)时,组分挥发严重。
短句来源
  高温溶液法
     In this paper, the Cr:KTP Crystal of two different doping concentration(of 0.03% and 0.l% respectively) are grown using high temperature solution method at different temperatures. The optimal temperature range for these two crystal growings is found; the influence of temperature on Cr:KTP Crystal morphological structure is discussed;
     采用高温溶液法在不同温度下生长了掺质量分别为摩尔原子质量的0.03%和0.1%的Cr:KTP晶体,确定了它们的最佳生长温度区间,并讨论了不同生长温度区间对Cr:KTP晶体形态的影响。
短句来源
     In this paper,a series of Zr,Ga single doped KTP crystals as well as double doped KTP crystals have been grown by high temperature solution method. Doping with Ga 3+ ions show positive effects on the stability of growth system.
     采用高温溶液法生长了含掺质离子Zr4 + ,Ga3 + 的单掺和双掺系列KTP型晶体。
短句来源
  高温固溶
     The results show that the resistance to multiple impact bend of GCr 15 steel treated by high temperature solution to refine carbide plus four cycle rapid heating and quenching to super-reflne austenite grain is higher than that treated by other treatment processes under any energy.
     试验結果表明,经高温固溶碳化物細化预处理加奥氏体超细化的四次循环快速加热淬火的GCr15钢,多次冲击弯曲坑力在任何能量下,均比其他工艺高。
短句来源
     The better match of strength, ductility and toughanss has been obtained for the alloy after high temperature solution treatment and aging.
     在高温固溶处理(927℃)和较低温度(485℃~500℃)时效后,合金获得了强度和韧性较好的匹配。
短句来源
     The structure of high dispersion carbide distribution can be gotten by using high temperature solution heat treatment and 790℃/680℃ cycle globurizing,and improving the structure,increasing the strength and toughness of CrWMn steel after end heat treating.
     采用高温固溶处理加790℃/680℃循环球化退火,可获得高弥散度碳化物,使CrWnMn钢的最终组织得到改善,强韧性明显提高。
短句来源
     The extensive recovery occurs after the first stage solution at 450℃,which reduces the driving force of recrystallization. Consequently,higher alloying elements supersaturation in matrix is obtained at the second stage high temperature solution and only little recrystallization happens. As a result,a better precipitation strengthening effect in subsequent aging is attained.
     在450℃进行第一级固溶后,样品发生了较强的回复,由于降低了再结晶驱动力,第二级高温固溶在获得较高的合金元素过饱和度的同时,仅发生较少的再结晶,从而在随后的时效过程中产生更高的析出强化效应。
短句来源
     The effect of high temperature solution treatment on the structure and properties of a directionally solidified high strength nickel-base superalloy has been investigated.
     本文研究高温固溶处理对一种定向凝固高强度镍基高温合金的组织和性能的影响。
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      high temperature solution
    The enthalpies of formation at 1385 ±2 K of the following crystalline borides have been determined by high temperature solution calorimetry using liquid copper as the calorimetric solvent.
          
    Understanding and use of high temperature solution chemistry is needed to avoid scale and deposit formation (concentration of chemical impurities from low ppb and ppm levels in water and steam) and corrosion.
          
    High temperature solution growth of yttrium aluminium garnet crystals using accelerated crucible rotation
          
    It shows that the complicated coupled vortex modes in high temperature solution are found for the crystal growth on the ground and the gravitation has an important influence on the velocity profile and temperature profile in the solution.
          
    Numerical simulation of velocity profile and temperature profile in the high temperature solution of a loop-shaped Pt wire heater was made by using the commercial computational code ANSYS.
          
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    The effect of high temperature solution treatment on the structure and properties of a directionally solidified high strength nickel-base superalloy has been investigated. The size and amount of fine γ' particle in the ahoy increased with the increase of solution temperature. Creep rupture life τ_f was increased and secondary creep rate (?) decreased with the increase of the solution temperature. As the alloy was undergone 1210 to 1250℃ solution and 900℃, 16 h aging,...

    The effect of high temperature solution treatment on the structure and properties of a directionally solidified high strength nickel-base superalloy has been investigated. The size and amount of fine γ' particle in the ahoy increased with the increase of solution temperature. Creep rupture life τ_f was increased and secondary creep rate (?) decreased with the increase of the solution temperature. As the alloy was undergone 1210 to 1250℃ solution and 900℃, 16 h aging, a two-fold increase in creep rupture life was obtained at 760℃ under 66 kgf/mm~2 load, however, the secondary creep rate apparently decreased. The relationship between τ_f and (?) can be expressed as (?)~mτ_f =c, where m≈1, c≈8.0. It is thus regarded that the improvement of rupture life at intermediate temperature (760℃) is due primarily to a fall in secondary creep rate, and in turn to an extension in secondary stage of creep. The secondary creep rate is strongly dependent upon the size, a, and volume fraction, ν_f, of the fine γ' and (?)∞α/ν_f~(2/3).The dislocation substructure during secondary stage of creep has been examined by TEM. At a creep temperature of 760℃, there were a number of dense 3-dimensional dislocation networks in γ matrix, but only a few superlattice dislocation pairs appeared in γ'. When the temperature was increased to 980℃, the γ-γ' interface was found to be covered with 2-dimensional dislocation networks. A mechanism for secondary stage creep has been proposed according to the climbing model.

    本文研究高温固溶处理对一种定向凝固高强度镍基高温合金的组织和性能的影响。实验结果表明,细小γ′尺寸(α)和体积分数(ν_f)都随固溶温度的升高而增大。随着固溶温度的升高,持久寿命延长,而第二阶段蠕变速率降低。经1210—1250℃高温固溶并900℃,16h时效处理(空冷)后,合金可成倍延长760℃,66kgf/mm~2的持久寿命(τ_f),而第二阶段蠕变速率((?))却随之降低,它们之间的关系符合(?)~(m·τ_f=c,其中m≈1,c=8.0.第二阶段蠕变速率((?))是细小γ′尺寸(α)和体积分数(ν_f)综合作用的结果,且εαα/ν_f~(2/3)。用透射电镜观察了第二阶段蠕变过程位错亚结构的变化。在中温第二阶段蠕变下,在γ基体上存在高密度的不规则的三维位错网络,而在γ′粒子中,只发现少数位错对;在高温第二阶段蠕变下,在γ/γ′界面上形成规则的二维位错网络。按照位错攀移模型,提出一种第二阶段蠕变机理。

    PrP5O14 and Pr0.9La0.1P5O14 crystals were grown from phosphoric acid by high-temperature solution method. The high quality crystals of up to 1 cm3 in size were obtained. Their spectra and structure were also determined.

    本文采用高温溶液法从磷酸溶液中生长PrP_5O_(14)和Pr_(0.9)La_(0.1)P_5O_(14)晶体。已获得大于1厘米~3、光学质量好的大晶体,并测定了晶体的光谱和结构。

    Having been developed over ten years, a great advance was made in both remanence and energy product of Fe-Cr-Co permanent magnetic alloys insomuch that the maximum energy product (BH)max and remanence Br are nowadays up to 10×106 Gs.Oe and 14,000Gs respectively. But the coercive force is still as low as only 500~600 Oe when heat-treating the alloy in an ordinary way. To raise the coercive force of Fe-Cr-Co alloys, measures as preparing columnar crystals or introducing a certain thermoma-gnetic process should...

    Having been developed over ten years, a great advance was made in both remanence and energy product of Fe-Cr-Co permanent magnetic alloys insomuch that the maximum energy product (BH)max and remanence Br are nowadays up to 10×106 Gs.Oe and 14,000Gs respectively. But the coercive force is still as low as only 500~600 Oe when heat-treating the alloy in an ordinary way. To raise the coercive force of Fe-Cr-Co alloys, measures as preparing columnar crystals or introducing a certain thermoma-gnetic process should be taken and it only can be carried out under ad hoc conditions. As an alternative, the possibility of raising coercive force by means of improving technological process of heat treatment and controlling alloying ingredients has been studied for years and the result is presented in this paper.Summary. As a means to obtain magnetic texture, thermomagnetic treatment(TMT) is regearded as favourable to the alloys in solid solution state, depending upon those particles taking place on the matrix of a-phase which come into magnetic phase after spinodal decpmpositipn with preferred orientation in the directions of magnetic field. Better properties can therefore be achieved after TMT and proper ageing followed. Experiments were performed on the supposition that the values of both coercive force and maximum energy product can be raised further by a secondary TMT followed by a proper ageing, for which the alloy to be treated is already decomposed and in phase equilibrium. The supposition has been verified the way the magnetic tex-tures of alloy specimens prepared from secondary TMT (see Fig.1) were further controlled through torque magnetometry and electron-microscopy such that the strong magnetic phase particles were elongated and the volume of weak magnetic phase particles increased. The result is regarded as that it is caused by the secondary TMT carried on a dualphase matrix and by the ferromagnetic elements diffused in the directions of magne- tic field with ease under the high-temperature solution of alloy specimens by reheating, thus improving further the magnetic texture, and the coercive force can be reached over 1,000 Oe therefrom.Fig.1 Flow diagram of secondary TMT --primary; ........secondary.Fig.2 Comparison of torque magnetometryprimary, 625℃×30min. ; ° secondary, 635℃×30min.Fig.3 Anisotropy constant Ku1 of 5 specimens as a function of the treating time of primary TMTprimary, 635℃10, ×15, ×20, ×30 and ×40 min. resp; followed by ageing) ° secondary, 635℃×20min followed by ageing.Fig.4 Anisotropy const ant Ku1 of 3 specimens as a function of the temperature of TMTprimary, at 625℃, 635℃ and 645℃ resp. followed by ageing; ° secondary, temperatures are the same with primary, followed by ageing.Fig.5 Miscibility gap of 25% Co-bearing Fe-Cr-Co alloysTab.1 Composition of alloy testedTab.2 Magnetic properties of alloy specimens after various HTTab.3 Magnetic properties of tested alloys in relation to different HT regimesTab.4 Size change of particles after primary and secondary TMT in averagePhotos 1-8 TEM micrographs of alloy specimens after different HT regimes

    本文研究高钴Fe-Cl-Co可加工永磁合金。通过二次磁场热处理及时效后,其性能在一次磁场处理及时效的基础上,将最大磁能积(BH)_(max)提高了1—0.5×10~6GsOe,矫顽力达到1000Oe以上,剩磁Br稍有下降。转矩测量和电镜观察表明这种磁性能的增加,主要是强磁性相粒子延伸与弱磁性相体积增加的结果。这种合金的磁硬化机制符合单畴转动模型。

     
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