Electrothermal Simulation of the Production of Alumina by Spark Plasma Sintering

Mustafa Güven Gök

Makale detayları

Electrothermal Simulation of the Production of Alumina by Spark Plasma Sintering

Yazarlar:

Mustafa Güven Gök

Yayıncı:

Marmara University

Ana Başlıklar:

Malzeme Üretim Teknolojileri | Toz Metalurjisi

Dergi:

International Journal of Advances in Engineering and Pure Sciences Vol.36 Issue 1, pp.33-38

Belge Tipi:

Makale

Yayın Tarihi:

3/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001312762

pISSN:

2636-8277

Anahtar kelimeler:

Özet:

 Although the spark plasma sintering SPS method is a very advantageous technque in many aspects, the inability to clearly read the temperature formed on the material during sintering and heterogeneous temperature distributions are the biggest problems of this process. Therefore, it is a common situation that samples taken from different regions of the produced material have different densities and mechanical properties. In this study, the temperature distributions, current density and joule heating effect of the entire setup consisting of the alumina Al2O3 sample to be sintered, inconel electrodes, graphite dies, punches and spacers, as well as the critical regions in this setup, are modeled by using finite element software. According to the results, the temperature is maximum at the centre of the Al2O3 sample and the temperature gradient along its radius is 22.4C. The temperature difference between the inner wall of the hole which is opened in the graphite mold to measure the sintering temperature and the centre of the Al2O3 sample is around 40C. In addition, during the SPS process, Al2O3 is not heated directly by the joule effect and the temperature gradient in the sample occurs due to mold surface radiation.

 Although the spark plasma sintering SPS method is a very advantageous technque in many aspects, the inability to clearly read the temperature formed on the material during sintering and heterogeneous temperature distributions are the biggest problems of this process. Therefore, it is a common situation that samples taken from different regions of the produced material have different densities and mechanical properties. In this study, the temperature distributions, current density and joule heating effect of the entire setup consisting of the alumina Al2O3 sample to be sintered, inconel electrodes, graphite dies, punches and spacers, as well as the critical regions in this setup, are modeled by using finite element software. According to the results, the temperature is maximum at the centre of the Al2O3 sample and the temperature gradient along its radius is 22.4C. The temperature difference between the inner wall of the hole which is opened in the graphite mold to measure the sintering temperature and the centre of the Al2O3 sample is around 40C. In addition, during the SPS process, Al2O3 is not heated directly by the joule effect and the temperature gradient in the sample occurs due to mold surface radiation.

 Although the spark plasma sintering SPS method is a very advantageous technque in many aspects, the inability to clearly read the temperature formed on the material during sintering and heterogeneous temperature distributions are the biggest problems of this process. Therefore, it is a common situation that samples taken from different regions of the produced material have different densities and mechanical properties. In this study, the temperature distributions, current density and joule heating effect of the entire setup consisting of the alumina Al2O3 sample to be sintered, inconel electrodes, graphite dies, punches and spacers, as well as the critical regions in this setup, are modeled by using finite element software. According to the results, the temperature is maximum at the centre of the Al2O3 sample and the temperature gradient along its radius is 22.4C. The temperature difference between the inner wall of the hole which is opened in the graphite mold to measure the sintering temperature and the centre of the Al2O3 sample is around 40C. In addition, during the SPS process, Al2O3 is not heated directly by the joule effect and the temperature gradient in the sample occurs due to mold surface radiation.

 Although the spark plasma sintering SPS method is a very advantageous technque in many aspects, the inability to clearly read the temperature formed on the material during sintering and heterogeneous temperature distributions are the biggest problems of this process. Therefore, it is a common situation that samples taken from different regions of the produced material have different densities and mechanical properties. In this study, the temperature distributions, current density and joule heating effect of the entire setup consisting of the alumina Al2O3 sample to be sintered, inconel electrodes, graphite dies, punches and spacers, as well as the critical regions in this setup, are modeled by using finite element software. According to the results, the temperature is maximum at the centre of the Al2O3 sample and the temperature gradient along its radius is 22.4C. The temperature difference between the inner wall of the hole which is opened in the graphite mold to measure the sintering temperature and the centre of the Al2O3 sample is around 40C. In addition, during the SPS process, Al2O3 is not heated directly by the joule effect and the temperature gradient in the sample occurs due to mold surface radiation.

Makale detayları

Electrothermal Simulation of the Production of Alumina by Spark Plasma Sintering

Yazarlar:

Mustafa Güven Gök

Yayıncı:

Marmara University

Ana Başlıklar:

Malzeme Üretim Teknolojileri | Toz Metalurjisi

Dergi:

International Journal of Advances in Engineering and Pure Sciences Vol.36 Issue 1, pp.33-38

Belge Tipi:

Makale

Yayın Tarihi:

3/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001312762

pISSN:

2636-8277

Finite Element Analysis

Spark Plasma Sintering

Alumina

Powder MetallurgyFinite Element Analysis

Spark Plasma Sintering

Alumina

Powder Metallurgy

Sayı

Makale detayları

Yazarlar: Mustafa Güven Gök

Yayıncı: Marmara University

Ana Başlıklar: Malzeme Üretim Teknolojileri | Toz Metalurjisi

Dergi: International Journal of Advances in Engineering and Pure Sciences Vol.36 Issue 1, pp.33-38

Belge Tipi: Makale

Yayın Tarihi: 3/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001312762

pISSN: 2636-8277

Sayı

Yazarlar:

Mustafa Güven Gök

Yayıncı:

Marmara University

Ana Başlıklar:

Malzeme Üretim Teknolojileri | Toz Metalurjisi

Dergi:

International Journal of Advances in Engineering and Pure Sciences Vol.36 Issue 1, pp.33-38

Belge Tipi:

Makale

Yayın Tarihi:

3/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001312762

pISSN:

2636-8277