A comparison of sintering techniques using different particle sized β-SiAlON powders |
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| Authors: | Onur Eser Semra Kurama |
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| Affiliation: | 1. Graduate Department of Advanced Technologies, Anadolu University, Eskisehir, Turkey;2. Department of Materials Science and Engineering, Anadolu University, Eskisehir 26555, Turkey;1. Center for Advanced Research of Energy and Materials, Hokkaido University, Kita 13 Nishi 8, Kitaku, Sapporo 060-8628, Japan;2. Combustion Synthesis Co., Ltd., Numazu, Shizuoka 410-0801, Japan;1. Department of Metallurgical and Materials Engineering, Bilecik S.E. University, Bilecik, Turkey;2. Department of Materials Science and Engineering, Anadolu University, Eskisehir, Turkey;1. Callaghan Innovation, Lower Hutt, New Zealand;2. MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand;3. Physics Department, Warwick University, Coventry CV47AL, UK;1. Department of Chemical and Process Engineering, Bilecik S.E. University, Bilecik, Turkey;2. Metallurgy Program, Bilecik S.E. University, Bilecik, Turkey;3. Department of Metallurgical and Materials Engineering, Bilecik S.E. University, Bilecik, Turkey;1. Department of Mechanical Engineering, College of Electrical and Mechanical Engineering (CE&ME), National University of Sciences and Technology (NUST), Pakistan;2. Department of Mechanical and Nuclear Engineering, University of Sharjah, Sharjah, United Arab Emirates;3. Center of Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals (KFUPM), Saudi Arabia;4. Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals (KFUPM), Saudi Arabia;1. College of Mechanical and Electronic Engineering, Northwest A&F University, Xinong Road 22, Yangling, Shaanxi 712100, China;2. Center for Advanced Research of Energy and Materials, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan |
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| Abstract: | In the present study sintering behavior and mechanical properties of β-SiAlON ceramics were investigated using different sintering techniques (gas pressured sintering (GPS), pressureless sintering and spark plasma sintering (SPS)) and different particle sized powders (with DBET 216 and 130 nm). After sintering of the microstructure and phase characterization were carried out using a scanning electron microscope (SEM) and the X-ray diffraction (XRD) method, respectively. All the samples, prepared using fine powder, were sintered at lower temperatures than samples prepared by conventional powder, by two sintering techniques (GPS and pressureless). Additionally, the results showed that cooling rates had an important effect on the formation and the amount of intermediate phase in the sample. As a result, it was shown that the particle size of starting raw materials, the amount of additive, the sintering temperature and the technique had a significant effect on the microstructure and mechanical properties of the SiAlON samples. |
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