Evaluation of Thermal Properties of the Fe80Cr20 Nanostructure for Interconnect Application in High Temperature

2015 ◽  
Vol 815 ◽  
pp. 193-197 ◽  
Author(s):  
Abdul Mutalib Leman ◽  
Dafit Feriyanto ◽  
M.N.M. Salleh ◽  
Ishak Baba
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
High Temperature ◽  
Raw Material ◽  
Ultrasonic Technique ◽  
Material Combination ◽  
X Ray ◽  
Combination Technique ◽  
Eds Analysis ◽  
Thermal Stability Of

Metallic Fe80Cr20 alloy in thermal stability analysis is investigated. Approached method is combination technique (milled and UT) of ball milling (milled) combined with ultrasonic technique (UT) which is not yet fully explored. From Energy Dispersive x-ray Spectroscopy (EDS) analysis resulted that the composition of 80 wt% Fe and 20 wt% Cr in individual particle was achieved at milled and UB 4.5 h sample. Higher thermal stability of treated samples approximately 63% at 1100 °C temperature operation which showed by milled and UT at 4.5 h when compared to raw material. Combination technique shown high prospect to advance exploration in improving thermal stability which suitable for interconnect application.

Investigation on the Thermal Stability of the Compounds Y3Fe29-xCrx

2013 ◽  
Vol 820 ◽  
pp. 71-74
Author(s):  
Xiao Hua Wang ◽  
Wei He ◽  
Ling Min Zeng
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Single Phase ◽  
Binary Compound ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Transition Elements ◽  
X Ray Diffraction ◽  
X Ray ◽  
Thermal Stability Of

Binary compound Y3Fe29cannot be directly formed by rare earth Y and Fe and the third element M (non-iron transition elements) must be introduced to form ternary compound Y3(Fe,M)29. In this work, six alloys with compositions of the Y3Fe29-xCrx(x=1,2,3,4,5,6) were prepared and investigated by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and differential thermal analysis (DTA). The study on the thermal stability of these compounds points to that the compoundY3(Fe,Cr)29is a high temperature phase and exists above 1100K. The alloys with single-phase of Y3(Fe,Cr)29was decomposed into Y2(Fe,Cr)17and Y(Fe,Cr)12annealed at high temperature 1100K.

Effects of CaO on the Yield and Thermal Properties of PANI Nanofibers

2017 ◽  
Vol 16 (2) ◽  
Author(s):  
Mohammad Mizanur Rahman Khan ◽  
Yee Keat Wee ◽  
Saif Uddin Ahmed ◽  
Masnun Naher ◽  
Muhammad Younus ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Thermogravimetric Analysis ◽  
Energy Dispersive ◽  
Thermally Stable ◽  
X Ray ◽  
Pani Nanofibers ◽  
Increasing Trend ◽  
Thermal Stability Of ◽  
Pani Matrix

AbstractThe control of thermal stability of polyaniline (PANI) nanofibers is reported by systematically varying the loadings of CaO in the range from 0.005 g to 1.0 g. It was found to gradually increase the yield of synthesized PANI nanofibers with the increase of CaO addition. The highest yield, 1.103 g was obtained for 1.00 g loading of CaO. The incorporation of CaO into PANI matrix was revealed by energy-dispersive X-ray spectroscopy (EDX). Thermogravimetric analysis (TGA) data showed that the thermal stability of PANI nanofibers was greatly improved when CaO was added to the system. 1.00 g loading of CaO is favorable to obtain comparatively more thermally stable PANI. The degradation of PANI chains started at 330 °C for the PANI-CaO composites obtained at 1.00 g CaO addition, which is the highest temperature compared to PANI and the samples synthesized at other amount of CaO loadings. Furthermore, the increasing trend of thermal stability was observed with the increasing of CaO loading.

Improvement of Thermal Stability of ZrB2/Si3N4 Coatings as High-Temperature Solar Selective Absorbers

2014 ◽  
Vol 521 ◽  
pp. 581-585
Author(s):  
Yao Ming Sun ◽  
Xiu Di Xiao ◽  
Guan Qi Chai ◽  
Gang Xu ◽  
Bin Xiong ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
High Temperature ◽  
Substrate Temperature ◽  
Bias Voltage ◽  
X Ray Diffraction ◽  
Substrate Bias Voltage ◽  
X Ray ◽  
Deposition Parameters ◽  
Thermal Stability Of

ZrB2 thin films were prepared by DC magnetron sputtering technique. The microstructure, thermal stability and optical properties of thin films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and spectrophotometer. The compactness of ZrB2 thin films was studied to improve the thermal stability by optimizing the deposition parameters. The compactness and thermal stability of the coatings were improved with the increase of substrate temperature. However, these properties of the coatings were enhanced firstly and then weakened with the increase of substrate bias voltage. The selectivity of sample deposited at high substrate temperature and suitable bias voltage degraded slightly after annealing at 500 °C/100 h in air. This provided a new way to improve the thermal stability of high-temperature solar selective absorber.

High-temperature breakdown of the synthetic iodine analogue of vanadinite, Pb5(VO4)3I: an apatite-related compound for iodine radioisotope immobilization?

2012 ◽  
Vol 76 (4) ◽  
pp. 997-1003 ◽  
Author(s):  
S. A. T. Redfern ◽  
S. E. Smith ◽  
E. R. Maddrell
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Complete Loss ◽  
Unit Cell Parameters ◽  
X Ray ◽  
Cell Parameters ◽  
Waste Forms ◽  
Iodine Radioisotope ◽  
Thermal Stability Of

AbstractThe thermal stability of the synthetic iodine analogue of vanadinite, Pb5(VO4)3I, in air has been investigated by in situ high temperature X-ray powder diffraction between 300 and 1070 K. Rietveld refinement of phase fractions shows that breakdown to lead orthovanadate, Pb3(VO4)2, begins at temperatures above 540 K, with complete loss of iodine above 680 K. More than 50 K below the onset of breakdown, the unit-cell parameters of Pb5(VO4)3I show anomalous contraction in the crystallographic x–y plane (reduction of a) which we associate with movement of iodine within the [0001] channels of the structure. The implications of these results for immobilization of 129I in potential apatite-related crystalline radioactive waste forms are discussed.

scholarly journals Effect of MgB2 additives on structure, electrical and thermal properties of Eu1Ba2Cu3O7

2018 ◽  
Vol 36 (4) ◽  
pp. 609-615
Author(s):  
Nurcan Akduran
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Measurement Method ◽  
Phase Identification ◽  
Solid State Method ◽  
X Ray ◽  
State Method ◽  
Traditional Solid State Method ◽  
Thermal Stability Of ◽  
The Eu

AbstractThe effect of MgB2 addition on the Eu1Ba2Cu3O7 (EBCO) ceramics was systematically studied. Series of Eu1Ba2Cu3O7 + x(MgB2) samples (x = 0 wt.%, 0.05 wt.%, 0.1 wt.%, 1 wt.%, 3 wt.%) were prepared using traditional solid state method. X-ray powder diffraction measurements were used for phase identification. The lattice parameters and orthorombicity decreased with MgB2 addition. A standard four point measurement method was used to determine transition temperatures Tc of superconducting samples. Tc values of the samples were decreasing with MgB2 concentration. TGA results indicate thermal stability of doped samples.

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