Temperature Characteristics of Mega SRC Columns at High Temperature

Abstract The application of thermocouples as temperature sensors has been well known and has already been established for many years. However, for classical thick-film technology using screen-printing and firing, no standardized solutions exist. The here-presented newly developed PtRh thick-film compositions (90% Pt,10% Rh) allows to construct thick-film type S thermocouples (Pt/PtRh), following the IEC temperature characteristics. They can be fired in air, and therefore can be easily integrated into existing thick-film components and devices. In an earlier study, the new Pt-Rh composition was successfully tested on alumina substrates. Their electrical characteristics is equal with classical wire type S thermocouples. This study continues the investigations of thick-film thermocouples. We tested the newly developed pastes for high temperature applications on alumina substrates and evaluated the application of the new screen-printable type S thermocouples on LTCC ceramics. Three possible configurations were investigated: deposited on already fired LTCC substrates (post-fired), screen-printed and co-fired with LTCC tapes on the top surface as well as as buried structures. The paper presents the results of our evaluation and discusses further possible applications.

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Improvement of High-Temperature Characteristics of the Sintered Nickel Positive Electrode for an Alkaline Storage Battery

Electrochemistry ◽

10.5796/electrochemistry.71.686 ◽

2003 ◽

Vol 71 (8) ◽

pp. 686-690 ◽

Cited By ~ 7

Author(s):

Katsuhiko SHINYAMA ◽

Yoshifumi MAGARI ◽

Atsuhiro FUNAHASHI ◽

Toshiyuki NOHMA ◽

Ikuo YONEZU

Keyword(s):

High Temperature ◽

Positive Electrode ◽

Storage Battery ◽

Temperature Characteristics

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A sintering burden blending model based on one-step optimization method and high-temperature characteristics of iron ore

Metallurgical Research & Technology ◽

10.1051/metal/2018080 ◽

2019 ◽

Vol 116 (2) ◽

pp. 211

Author(s):

Shengli Wu ◽

Xiaobo Zhai ◽

Tiankai Song

Keyword(s):

High Temperature ◽

Iron Ore ◽

Intelligent System ◽

Quantitative Relationship ◽

High Strength ◽

Optimization Method ◽

Temperature Characteristics ◽

Positive Effects ◽

One Step ◽

The One

A sintering burden blending model is an intelligent system used to obtain the optimal blending proportions of burdens with minimal sintering burden cost. In this study, micro-sintering and sinter pot tests were first carried out to clarify the quantitative relationship between the shatter index (SI) of the sinter and high-temperature characteristics (HTCs) of the ore blends. The result shows that the lowest assimilation temperature (LAT) plays a dual role in SI, whereas the index of liquid phase fluidity (ILF) and compressive strength of the bonding phase (CSB) have positive effects on SI. The effect of the ILF is the largest. Based on the one-step optimization method, suitable ranges of room-temperature characteristics (RTCs) of ore blends, obtained relationship between sinter strength and HTCs of ore blends, sintering theory, and bisection and simplex algorithms, the proposed sintering burden blending model is established. The validation for the model shows that it is effective at utilizing iron ore resources, maintaining high strength of the sinter, while reducing burden costs.

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High temperature characteristics of Pd Schottky contacts on n-type GaN

Electronics Letters ◽

10.1049/el:19961191 ◽

1996 ◽

Vol 32 (19) ◽

pp. 1832 ◽

Cited By ~ 41

Author(s):

A.C. Schmitz ◽

A.T. Ping ◽

M. Asif Khan ◽

Q. Chen ◽

J.W. Yang ◽

...

Keyword(s):

High Temperature ◽

Schottky Contacts ◽

Temperature Characteristics

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Improving High-Alumina Iron Ores Processing via the Investigation of the Influence of Alumina Concentration and Type on High-Temperature Characteristics

Minerals ◽

10.3390/min10090802 ◽

2020 ◽

Vol 10 (9) ◽

pp. 802

Author(s):

Yuxiao Xue ◽

Jian Pan ◽

Deqing Zhu ◽

Zhengqi Guo ◽

Congcong Yang ◽

...

Keyword(s):

High Temperature ◽

Liquid Phase ◽

High Strength ◽

Free State ◽

High Alumina ◽

Iron Ores ◽

Alumina Concentration ◽

Temperature Characteristics ◽

Al2o3 Concentration ◽

Iron Grade

Aiming at the effective utilization of the abundant high-alumina iron ores with low iron grade, the influence of alumina concentration and type on high-temperature characteristics was clarified based on the analyses of eight typical iron ores. The results indicate that high-temperature characteristics of iron ores in various alumina types are different. Higher Al2O3 concentration is deleterious to assimilability and liquid phase fluidity, but the influence extent of each alumina type is substantially different. Kaolinite (Al2O3·2SiO2·2H2O) contributes to correspondingly better assimilability, followed by hercynite (Fe(Fe, Al)2O4), gibbsite (Al(OH)3), diaspore (AlO(OH)), and free state alumina (Al2O3) in turn. Diaspore promotes relatively higher liquid phase fluidity, followed by kaolinite, free state alumina, and hercynite, while gibbsite possesses the maximum adverse impact. Kaolinite and hercynite are more beneficial to form dendritic or acicular silico-ferrite of calcium and alumina (SFCA) with high strength due to the better reactivity, and gibbsite and diaspore lead to more formation of relatively lower strength lamellar or tabular SFCA, while free state alumina is preferable to form disseminated SCFA with rather poorer strength. Kaolinite and hercynite are the most desirable alumina types for sintering rather than free state alumina.

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