Ni-Esaslı Alaşımların (Ni% ≥70) Analizi için Spektroskopik Yöntemlerin Uygulanması

Yıl 2018, Cilt: 39 Sayı: 1, 144 - 151, 16.03.2018

Zeynep Aygün

https://doi.org/10.17776/csj.405681

Cited By: 2

Öz

Bu çalışmada Ni_xFe_yMo_z
(x = 0.80; y = 0.15; z = 0.05), Ni_xCr_yFe_z (x =
0.70; y = 0.20; z = 0.10), and Ni_xCr_yAl_zCu_t
(x = 0.75; y = 0.20; z = 0.025; t = 0.025) şeklinde olan ve yüksek
sıcaklıklarda pellet formunda ısıtılarak hazırlanan Ni esaslı alaşımların
yapısal ve manyetik özellikleri incelenmiştir. Bu amaçla, dış manyetik alanda
alaşımların davranışlarını görmek için bu kompozisyonların paramanyetik
özelliklerinin analizinde elektron paramanyetik rezonans deneyi kullanılmıştır.
Oda sıcaklığında kaydedilen elektron paramanyetik rezonans spektrumlarından g
değerleri hesaplanmıştır. Ni_xFe_yMo_z,
Ni_xCr_yFe_z and Ni_xCr_yAl_zCu_t
alaşımlarının yapısal özellikleri x-ışını kırınımı tekniği ile
gözlemlenmiştir. Çizgi yerleri ve şiddetleri oda sıcaklığında kaydedilen
x-ışını kırınımı spektrumları ile tartışılmıştır. Numunelerin yüzey
morfolojisini anlamak için taramalı elektron mikroskobu; alaşımların elementel
kompozisyonu için enerji dağılımlı spektroskopi deneyleri oda sıcaklığında
yürütülmüştür.

Anahtar Kelimeler

Ni-esaslı alaşımlar, manyetik özellikler, yapısal özellikler

Application of Spectroscopic Methods for Analysis of Ni-Based Alloys (Ni% ≥70)

Öz

In this paper, we investigate the structural and magnetic properties of
Ni based alloys which are in the form of Ni_xFe_yMo_z
(x = 0.80; y = 0.15; z = 0.05), Ni_xCr_yFe_z (x =
0.70; y = 0.20; z = 0.10), and Ni_xCr_yAl_zCu_t (x = 0.75; y = 0.20; z =
0.025; t = 0.025) and are prepared by heating the pellet formed samples at high
temperature. For this purpose, electron paramagnetic resonance experiment is
performed for analysis of paramagnetic centers of these compositions to see the
behaviours of alloys in an external magnetic field. g values are calculated
from electron paramagnetic resonance spectra recorded at room temperature.
Structural features of Ni_xFe_yMo_z,
Ni_xCr_yFe_z and Ni_xCr_yAl_zCu_t
alloys are observed by x-ray diffraction technique. Line positions and line
intensities are discussed by the help of x-ray diffraction spectra recorded at
room temperature. In order to understand the surface morphology of samples,
scanning electron microscopy; for the elemental compositions of the alloys
energy dispersive spectrosopy experiments are carried out at room temperature.

Anahtar Kelimeler

Ni-based alloys, magnetic properties, structural features

Kaynakça

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