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Browsing by Author "Kırsever, Derya"

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Effect of Mechanical Activation on the Structural Properties of Mn-Doped Na0.5Bi0.5TiO3 Ceramics

Kırsever, Derya; Toplan, Hüseyin Özkan (POLISH ACAD SCIENCES INST PHYSICS, 2016)

Piezoelectric ceramics (Na0.5Bi0.5)TiO3 + 0.5 mol.% Mn (Mn-NBT) have been synthesized by mechanical activation of mixed oxides BiO2, Na2CO3, TiO2 and MnO for 1 h at room temperature. Non-activated and activated Mn-NBT ...
EFFECT OF MECHANICAL ACTIVATION ON THE SYNTHESIS OF A MAGNESIUM ALUMINATE SPINEL

Kırsever, Derya; Canikoğlu, Nuray; Toplan, Hüseyin Özkan (INST ZA KOVINSKE MATERIALE I IN TEHNOLOGIE, 2016)

A magnesium aluminate spinel powder (72 % Al2O3 & 28 % MgO) was prepared with mechanical activation. Samples were sintered in a temperature range of 1400-1750 degrees C. The final sintered products were characterized with ...
Effects of mechanical activation on the structure of talc

Kırsever, Derya; Toplan, Nil; Toplan, Hüseyin Özkan (KOREAN ASSOC CRYSTAL GROWTH, INC, 2015)

This paper presents the results of research on mechanical activation of raw talc in planetary mill. Raw talc was mechanically activated in a planetary mill for five different grinding times as 15 min, 30 min, 45 min, 60 ...
Electrical Properties of Lead-Free Na1/2Bi1/2TiO3 Relaxor Ferroelectric Ceramics Doped with Hafnium or Zirconium

Kırsever, Derya (WILEY, 2015)

Ferroelectric (Na1/2Bi1/2)TiO3 and its various solid solutions have been drawing special attention as a new candidate for their lead-based counterparts. In this study, therefore, hafnium- or zirconium-doped grain-oriented ...
Recycling of Secondary Aluminium Production Waste in Processing of Mullite Based Refractory Ceramics

Kırsever, Derya; N. K. Karabulut; Toplan, Nil; H. O. Toplan (POLISH ACAD SCIENCES INST PHYSICS, 2015)

This work describes the studies to reuse secondary aluminium production waste (SAPW) derived from aluminium casting processes in the fabrication of mullite-based refractory ceramics. SAPW was characterized by using particle ...
Seramik parlatma atıklarının yalıtım malzemesi olarak kullanılabilirliği

Kırsever, Derya (Sakarya Üniversitesi, 2018)

Dünya üzerinde her geçen gün milyonlarca ton porselen parlatma atığı üretilmektedir. Bu atıklar, atık depolama sahalarında bertaraf edilmekte ve genellikle yeterli işlemden geçirilmeden ekosisteme tekrar geri boşaltılmaktadır. ...
The Cordierite Formation in Mechanically Activated Talc-Kaoline-Alumina-Basalt-Quartz Ceramic System

Kırsever, Derya; N. Karakus; Canikoğlu, Nuray; Toplan, Nil; H. O. Toplan (POLISH ACAD SCIENCES INST PHYSICS, 2015)

The powder mixtures of Talc-Kaolinite-Alumina-Basalt-Quartz were mechanically activated in a planetary ball mill for 1 hour. The structural alterations and thermal behaviour of the powder mixture were examined by X-ray ...