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glass fluxing
相关语句
  熔融玻璃净化
     By using glass fluxing equipment, the liquid Ag_(38.5)Cu_(33.4)Ge_(28.1) ternary eutectic alloy was undercooled by a great degree up to 175 K(0.227_e).
     熔融玻璃净化实验中,三元Ag_(38.5)Cu_(33.4)Ge_(28.1)共晶合金获得了175K(0.22T_E)的最大过冷度。
短句来源
     Co85Cu15 hypoperitectic alloy melt was undercooled by 351 K (0.21TL ) with glass fluxing technique. The hypercooling limit of this alloy was determined to be 379 K.
     采用熔融玻璃净化法使大体积Co85Cu15亚包晶合金的最大过冷度达到351K(0.21TL),实验测得其超过冷临界过冷度为379K.
短句来源
     The microstructure evolution pattern of undercooled Cu-40wt%Pb(mass percentage)tennary alloy has been investigated with glass fluxing technique combined with cycling processes of superheating and cooling.
     用熔融玻璃净化与循环过热相结合的方法,研究了Cu-40wt%Pb过偏晶合金过冷熔体凝固组织的演化规律。
短句来源
     In addition, the solidification characteristics of Ag42.4Cu21.6Sb36eutectic alloy by glass fluxing, drop tube and melt spinning method are compared to reveal some common kinetics features.
     另外,对熔融玻璃净化、落管快速凝固及单辊急冷这三种实验条件下Ag_(42.4)Cu_(21.6)Sb_(36)共晶合金的凝固特征进行了比较研究。
短句来源
     In the undercooling range of 25 304K, the micro structure evolution patterns of undercooled Cu 39%Ni 6%Fe(wt%) ternary alloy during solidification are investigated with glass fluxing technique combined with cycling process of superheating and cooling.
     利用熔融玻璃净化结合循环过热,在25~304K过冷度范围,分析了Cu-39%Ni-6%Fe(wt%)三元合金凝固过程过冷组织的演化规律。
短句来源
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  “glass fluxing”译为未确定词的双语例句
     Fe5oCu5o hypoperitectic alloy experiences metastable phase separation during rapidsolidification under drop tube and glass fluxing conditions.
     两种实验条件下,四摘 要种合金都发生了不同程度的相分离现象。
短句来源
     In this study, the glass fluxing method is applied to study the undercoolingbehavior of simple eutectic alloys system (binary and ternary alloy).
     本文运用玻璃熔覆法对简单共晶系(二元和三元)合金的过冷行为进行了研究。
短句来源
     By using glass fluxing incorporated with cyclical superheating purification method, the purification effect and micro purification mechanism of bulk liquid Fe-B-Si eutectic alloys were investigated.
     采用熔融玻璃与循环过热相结合的净化方法 ,系统研究了Fe -B -Si共晶合金的净化规律及其净化机制 ,提出了该合金大体积液态金属获得深过冷的优化工艺 .
短句来源
     The high undercooling of the NiP eutectic alloys was achieved by glass fluxing technique.
     采用玻璃熔覆法使Ni P共晶合金实现了深过冷。
短句来源
     The Ag-Ge alloy melts with deeply undercooled hypoeutectic, eutectic and hypereutectic were obtained via glass fluxing technique. The nucleation of the deeply undercooled alloy melts were triggered by atoms cluster sputtering on the surface of the melts. The atoms clusters were generated by an ion beam bombarding on the Cu foil fixed above the alloy melts.
     采用玻璃包覆的方法获得具有较大过冷度的亚共晶、共晶以及过共晶Ag-Ge合金熔体,并通过高能离子束轰击Cu箔产生Cu原子团簇溅射到过冷合金熔体中来触发非均质形核过程。
短句来源
  相似匹配句对
     DTA on Glass
     玻璃的差热分析
短句来源
     Glass of Today
     今日玻璃
短句来源
     The high undercooling of the NiP eutectic alloys was achieved by glass fluxing technique.
     采用玻璃熔覆法使Ni P共晶合金实现了深过冷。
短句来源
     In this study, the glass fluxing method is applied to study the undercoolingbehavior of simple eutectic alloys system (binary and ternary alloy).
     本文运用玻璃熔覆法对简单共晶系(二元和三元)合金的过冷行为进行了研究。
短句来源
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  glass fluxing
High undercooling with respect to the liquidus was reached by means of the glass fluxing technique.
      
The solidification characteristics of highly undercooled Cu-7.77% Co peritectic alloy has been examined by glass fluxing technique.
      
The phase separation and dendrite growth characteristics of ternary Fe-43.9%Sn-10%Ge and Cu-35.5%Pb-5%Ge monotectic alloys were studied systematically by the glass fluxing method under substantial undercooling conditions.
      
Rapid solidification of bulk Ag42.4Cu21.6Sb36 ternary eutectic alloy is accomplished by glass fluxing method, during which the maximum undercooling attains 114 K (0.16TE).
      


An infrared pyrometer with simple construction(named DIY type) was designed, which showed a measurment range of 923 ̄2 273K, a response time of less than 1 ms, a minimum target size of 41.4 mm, and an accuracy of 1% ̄2%. As RF induction melting was widely applied in rapid solidification processing, a low-pass RC filter was also contrived to reduce the 300 ̄500 kHz high frequency disturbance by 42 ̄51 dB. A stepwise isothermal calibrating procedure was developed during which a pyomctcr was calibrated against a standard...

An infrared pyrometer with simple construction(named DIY type) was designed, which showed a measurment range of 923 ̄2 273K, a response time of less than 1 ms, a minimum target size of 41.4 mm, and an accuracy of 1% ̄2%. As RF induction melting was widely applied in rapid solidification processing, a low-pass RC filter was also contrived to reduce the 300 ̄500 kHz high frequency disturbance by 42 ̄51 dB. A stepwise isothermal calibrating procedure was developed during which a pyomctcr was calibrated against a standard thermocouple or another well calibrated pyrometer under isothermal conditions at a succssion of temperatures. Both the DIY pyrometer and a commercial high-accuracy Yunnan-Land NQO7/ 13C1V125-2M-ESPU infrared temperature-sensing system were calibrated with this method under seven different experimental conditions characteristic of the undcrcooling processing by glass fluxing. It was found that the output voltage E of DIY pyrometer varied cxponentially with sample temperature-E=Ac-B/T-and that the rcgrcssion line Inn ̄T-1 maintained an approximately constant slope under different experimental conditions for a certain metal or alloy. Similarly, during glass fluxing undcrcooling experiments the slope of the linear calibration line T=c+kE of Yunan-Land NQO7/ 13C1V125-2M-ESPU system did not vary with the compositon of the molten inorganic glass surrounding a metallic sample. Based upon this discovery,a simplified calibration method was proposed. For a given metallic material, if the slopes (B or k) of the calibration curves of the infrared thermometers under one experimental condition had been determined through stepwise isothermal calibration, their calibration curves for any other experimental conditions could be simply obtained by the relations where Em represented the thermometer output at the material melting point Tm under the changed experimental conditions. Both experimental investigations and theoretical analyses indicated that the key step to enhancing temperature measurement accuracy was to keep calibration conditions in strict consistency with the actual situation of rapid solidification processing.

设计了一种适用于深过冷液态金属快速凝固研究的宽量程简易红外温度计,其测量范围为923~2273K,响应时间小于1ms,最小目标Φ1.4mm,精度可达1%~2%。提出了一种分步恒温标定方法,在七种不同实验条件下对这一简易红外温度计和高精度NQO7/13CIV125-2M-ESPU红外测温系统进行了标定,由此导出一种简易标定法,并分析了提高快速凝固过程中测温精度的途径。

Ni-10% Fe and Ni-35% Fe alloy melts were undercooled with glass fluxing technique by 371 (0. 90 △T_h) and 343 K (0. 91 △T_h) .Their hypercooling limits △T_h were determined to be 413 and 376 K respectively. A new method to measure the integral mean specific heat C_(pL) of undercooled metallic melts was developed according to the definition of hypercooling. That is, one can take C_(pL) as the ratio of latent heat of fusion △H_m to hypercooling limit △T_h, provided that the latter two physical parameters...

Ni-10% Fe and Ni-35% Fe alloy melts were undercooled with glass fluxing technique by 371 (0. 90 △T_h) and 343 K (0. 91 △T_h) .Their hypercooling limits △T_h were determined to be 413 and 376 K respectively. A new method to measure the integral mean specific heat C_(pL) of undercooled metallic melts was developed according to the definition of hypercooling. That is, one can take C_(pL) as the ratio of latent heat of fusion △H_m to hypercooling limit △T_h, provided that the latter two physical parameters have been obtained through experiments. The C_(pL) values of the above Ni-Fe alloys were found to be 41. 0 and 40. 7 J/ (mol . K). Theoretical calculations were also carried out to reveal the relationships of enthalpy change △H_(LS), entropy change △S_(LS), Gibbs free energy change △G_(LS) and crystal nucleation rate I during rapid solidification vs undercooling. Although the maximum undercoolings achieved by both Ni-Fe alloys have exceeded the critical level of 0-2 T_L, the calculated results indicate that heterogeneous nucleation must have taken place in preference to homogeneous nucleation. Those heterogeneous nucleants with a wetting angle range of 53°< θ< 80°played the dominating role to prevent Ni-Fe alloys from further approaching their hypercooling limits.

采用熔融玻璃净化法使液态Ni-10%Fe和Ni-35%Fe合金过冷度分别达到371(0.90△T_h)和343K(0.91△T_h).实验测得其超过冷临界过冷度△Th分别为413和376K.根据超过冷的定义导出一种测定深过冷熔体平均比热容的方法,从而得到两种深过冷合金的比热容为41.0和40.7J/(mol·K).据此对快速凝固过程中的焓变△H_(LS),熵变△S_(LS),相变驱动力△G_(LS)以及晶体形核率Ⅰ进行了理论计算.发现尽管过冷度超过了0.2T_L,液态合金仍然发生异质形核.

The microstructure evolution pattern of undercooled Cu-39%Ni-6%Fe (mass percentage) ternary alloy has been investigated with glass fluxing technique combined with cycling process of superheating and cooling. In the undercooling range (25~304K), the microstructure changes two times abruptly. The first abrupt change takes place at 110K of undercooling, and because of the restrained ripening process the microstructure changes into highly developed fine dendrite from granular grain formed at lower undercoolings....

The microstructure evolution pattern of undercooled Cu-39%Ni-6%Fe (mass percentage) ternary alloy has been investigated with glass fluxing technique combined with cycling process of superheating and cooling. In the undercooling range (25~304K), the microstructure changes two times abruptly. The first abrupt change takes place at 110K of undercooling, and because of the restrained ripening process the microstructure changes into highly developed fine dendrite from granular grain formed at lower undercoolings. The second abrupt change occurs at 180K 0f undercooling and 3kind of even quasi-spherical grain has been formed by recrystallization of the fine dendrite.

用熔融玻璃净化与循环过热相结合的方法,研究了Cu-390Ni-60Fe(mg·g-1)合金过冷熔体凝固组织的演化规律在过冷度25~304K的范围内,其凝固组织的形态有两次突变:第一次是在过冷度110K时,因枝晶熟化被抑制,由枝晶重熔形成的粒状晶转变成高度细化的细枝晶;第二次发生在过冷度180K时,组织因细枝晶再结晶转变成均匀的准球状晶粒

 
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