Effect of electron beam irradiation on the morphology of alumina ceramic

Purwanto, Hadi and Othman, Nur Ezzah Faezah and Zaini, KH and Abdullah, Yusuf (2015) Effect of electron beam irradiation on the morphology of alumina ceramic. In: International Conference in Advances in Manufacturing And Materials Engineering , 23-25 september 2014, Kuala Lumpur.

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Abstract

There has been an increased interest in improving the properties of alumina ceramic to be used in nuclear applications. This paper focuses on the effect of electron beam irradiation on the morphology of alumina ceramic. Alumina ceramic pellet was prepared by compacting of fine alumina powder then subjected for sintering process at 1500ºC for 2 hours using electrical heating furnace. Then, the pellets were irradiated with electron beam of total dose 200 kGy with vary of electron beam speed of 100kGy/pass and 25kGy/pass. Scanning Electron Microscope and Atomic Force Microscope were used to observe the morphology of the sample. The results show that the irradiation changes the grain of the alumina ceramic due to bonding of particles caused by energy from electron beam especially at high speed. Furthermore, the surface roughness decreases after irradiation and become lower at low speed. Finer grain is obtained on the surface after irradiated at lower speed. The high energy of electron beam destroyed the particles during long contact period to the surface when low speed of electron beam is applied.

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Additional Information:	5804/40941
Uncontrolled Keywords:	Alumina, powder metallurgy, electron irradiation
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Hadi Purwanto
Date Deposited:	04 Jun 2015 08:58
Last Modified:	15 Jan 2018 15:49
URI:	http://irep.iium.edu.my/id/eprint/40941

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