Al2O3 Ceramics with Graded Porosity Produced from Natural and Artificial Pore Formers

Gülsüm TOPATEŞ

Makale detayları

Al2O3 Ceramics with Graded Porosity Produced from Natural and Artificial Pore Formers

Yazarlar:

Gülsüm TOPATEŞ

Yayıncı:

Gazi University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Journal of Polytechnic 2017 Vol.20 Issue 3, pp.595-598

Belge Tipi:

Makale

Yayın Tarihi:

9/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000590981

Sıklık:

Aylık

eISSN:

2147-9429

Özet:

 


Al2O3
ceramics with graded porosity were produced by using corn starch and PMMA
sphere as pore former additives (PFA). Graded porosity was obtained by
uniaxially pressing the stacks of Al2O3 mixtures with and
without PFA together. Pressed samples were heat-treated to remove PFAs at 600oC
and sintered at 1540oC. Final porosity of graded ceramics produced
from starch and PMMA were measured as 12 and 16%, obtained median pore size
were 3 and 11 µm, respectively. The elastic moduli of the samples were measured
by pulse-echo method and results showed that moduli values of the samples
varied significantly depending on the PFA type. PMMA added samples had lower
elastic moduli values than starch added ceramics as a result of higher pore
size and interconnected pore structure. By using the pulse-echo method, the
elastic properties of the graded samples couldn’t be measured effectively.

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Makale detayları

Al2O3 Ceramics with Graded Porosity Produced from Natural and Artificial Pore Formers

Yazarlar: Gülsüm TOPATEŞ

Yayıncı: Gazi University

Ana Başlıklar: Uygulamalı fizik

Dergi: Journal of Polytechnic 2017 Vol.20 Issue 3, pp.595-598

Belge Tipi: Makale

Yayın Tarihi: 9/2017

Belge Dili: Türkçe

Document ID (Org No.): 2000590981

Sıklık: Aylık

eISSN: 2147-9429

Sayı

Yazarlar:

Gülsüm TOPATEŞ

Yayıncı:

Gazi University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Journal of Polytechnic 2017 Vol.20 Issue 3, pp.595-598

Belge Tipi:

Makale

Yayın Tarihi:

9/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000590981

Sıklık:

Aylık

eISSN:

2147-9429