Solid‐state reactions in high‐temperature superconductor‐ceramic interfaces; Y‐Ba‐Cu‐O on Al2O3versus yttria‐stabilized ZrO2, and MgO

1990 ◽  
Vol 67 (5) ◽  
pp. 2524-2527 ◽  
Author(s):  
A. Fartash ◽  
Ivan K. Schuller ◽  
J. Pearson
Keyword(s):  
High Temperature ◽  
Solid State ◽  
High Temperature Superconductor ◽  
Solid State Reactions ◽  
Ceramic Interfaces

scholarly journals Energy transfer in single phase Eu3+-doped Y2WO6 phosphors

RSC Advances ◽  
2017 ◽  
Vol 7 (25) ◽  
pp. 14974-14980 ◽  
Author(s):  
J. Llanos ◽  
D. Espinoza ◽  
R. Castillo
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Single Phase ◽  
Solid State Reactions

Inorganic phosphors based on monoclinic Y2WO6 doped with Eu3+ ions were prepared via conventional solid-state reactions at high temperature.

Emission red shift and energy transfer behavior of color-tunable KMg4(PO4)3:Eu2+,Mn2+phosphors

2015 ◽  
Vol 3 (21) ◽  
pp. 5516-5523 ◽  
Author(s):  
Jian Chen ◽  
Yan-gai Liu ◽  
Lefu Mei ◽  
Ziyao Wang ◽  
Minghao Fang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Red Shift ◽  
Solid State Reactions ◽  
Luminescence Properties ◽  
Color Tunable ◽  
Transfer Behavior

A series of Eu2+- and Mn2+-coactivated KMg4(PO4)3phosphors were prepared by conventional high temperature solid-state reactions. Their luminescence properties, emission red shifts and the energy transfer between Eu2+and Mn2+were investigated and the related mechanisms were discussed in detail.

Über eine neue Präparationstechnik in der Feststoffchemie, I Hochtemperatursynthesen mit CO2-Laser / A New Preparation Technique in Solid State Chemistry, I High Temperature Reactions with CO2-Laser

1979 ◽  
Vol 34 (3) ◽  
pp. 371-374 ◽  
Author(s):  
Hk. Müller-Buschbaum ◽  
H. Pausch
Keyword(s):  
High Temperature ◽  
Laser Radiation ◽  
Solid State ◽  
Co2 Laser ◽  
Solid State Reactions ◽  
Solid State Chemistry ◽  
Preparation Technique ◽  
Temperature Method ◽  
High Temperature Reactions

Abstract A new high temperature method using a CO2-Laser radiation is reported. Its application on solid state reactions in air or in defined gas atmospheres is described.

Ambient pressure synthesis of Eu3+ doped δ-BiB3O6 by seed-assisted high temperature solid state reactions

2020 ◽  
Vol 49 (18) ◽  
pp. 5932-5938
Author(s):  
Yunwei Zhao ◽  
Pengfei Jiang ◽  
Wenliang Gao ◽  
Rihong Cong ◽  
Jing Ju ◽  
...  
Keyword(s):  
Crystal Growth ◽  
High Temperature ◽  
Solid State ◽  
Single Crystal ◽  
Ambient Pressure ◽  
Single Crystal Growth ◽  
Solid State Reactions ◽  
Pressure Synthesis ◽  
High Level

A high level of Eu3+ (7 atom%) was doped successfully, suggesting the possible single crystal growth of bi-functional RE3+-doped δ-BiB3O6.

Solid state reactions of SiC with Co, Ni, and Pt

1991 ◽  
Vol 6 (4) ◽  
pp. 796-809 ◽  
Author(s):  
T.C. Chou ◽  
A. Joshi ◽  
J. Wadsworth
Keyword(s):  
Solid State ◽  
Solid State Reactions ◽  
Dendritic Microstructure ◽  
Sic Ceramics ◽  
Rate Limiting Step ◽  
Metal Silicides ◽  
Metal Ceramic ◽  
Reaction Zones ◽  
Ceramic Interfaces ◽  
Rate Limiting

Solid state reactions between SiC ceramics and Co, Ni, and Pt metals have been studied at temperatures between 800 and 1200 °C for various times under He or vacuum conditions. Reactions between the metals and SiC were extensive above 900 °C. Various metal silicides and carbon precipitates were formed in layered reaction zones. Interfacial melting was also observed at certain temperatures; teardrop-shaped reaction zones, porosity, and dendritic microstructure resulting from melting/solidification were evident. The metal/ceramic interfaces exhibited either planar or nonplanar morphologies, depending upon the nature of the metal/ceramic reactions. Concave interfacial contours were observed when interfacial melting occurred. By contrast, planar interfaces were observed in the absence of interfacial melting. In all cases, the decomposition of SiC was sluggish and may serve as a rate limiting step for metal/ceramic reactions. Free unreacted carbon precipitates were formed in all the reaction zones and the precipitation behavior was dependent upon the metal system as well as the location with respect to the SiC reaction interface. Modulated carbon bands, randomly scattered carbon precipitates, and/or carbon-denuded bands were formed in many of the reaction zones, and the carbon existed in a mixed state containing both amorphous and graphitic forms.

Synthesis of Hg2Sr2-xBaxCa2Cu3O10 Superconductor and Study the Structure and Electrical Properties

2020 ◽  
Vol 1002 ◽  
pp. 230-238
Author(s):  
Shahir Fleyeh Nawaf ◽  
Nihad Ali Shafeek ◽  
Mohamed Hasan Darweesh
Keyword(s):  
Molecular Weight ◽  
Electrical Resistivity ◽  
High Temperature ◽  
Solid State ◽  
Electrical Properties ◽  
High Temperature Superconductor ◽  
Pure Material ◽  
Best Value ◽  
Compensation Rate ◽  
Structure Properties

Compound Hg2Sr2-xBaxCa2Cu3O10 high temperature superconductor looks like (HTSC) has been prepared as a pellet by two step solid state reaction with a certain substitution percentages (0.5, 1,1.5,2) of Ba compensation rate of Sr respectively using appropriate weight of pure material Hg2O3, Sr(NO3)2, Ba(NO3)2, CaCO3, and Cu(NO3)2 proportional to their molecular weight. XRD used for study structure properties, a computer program was used to calculation of spike dimensions the lattice parameters a, b and c shows Tetragonal, Electrical resistivity at x= 1.5 of Ba are obtained when the best value of Tc= 142 K.

High-temperature superconductor, YBa2Cu307-x as all- solid-state lithium cell

1992 ◽  
Vol 40 (3) ◽  
pp. 361-363
Author(s):  
Li Feng ◽  
Yongyao Xia ◽  
Zuotao Zeng ◽  
Baochen Wang
Keyword(s):  
High Temperature ◽  
Solid State ◽  
High Temperature Superconductor ◽  
Lithium Cell

Ceramic colors

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Gerhard Pfaff
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Metal Oxides ◽  
Colloidal Particles ◽  
Solid State Reactions ◽  
Mixed Metal Oxides ◽  
Bone China ◽  
Application Systems ◽  
Ceramic Color ◽  
Gold Silver

Abstract Ceramic colors or stains consist mainly of pigments, glaze or body, and opacifiers. They are used for the decoration of porcelain, earthenware bone china and other ceramics. Glazes and enamels are the main application systems for ceramic colors. Pigments are the color giving components in the composition of a ceramic color. High temperature and chemical stability as well as high tinting strength are characteristics of stains. Technically important ceramic colors are cadmium sulfide and sulfoselenides (occluded in zircon), metals such as gold, silver, platinum, and copper (as colloidal particles), metal oxides (α-Fe2O3, Cr2O3, CuO, Co3O4/CoO, MnO2/Mn2O3, and NiO/Ni2O3), mixed metal oxides and silicates, zirconia-based and zircon-based compositions. Ceramic colors are often produced using solid state reactions.

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