1. a School of Ceramic Engineering , Suranaree U. of Technology , Muang, Nakhon Ratchasima, 30000, Thailand
2. b School of Electrical Engineering , Suranaree U. of Technology , Muang, Nakhon Ratchasima, 30000, Thailand
3. c National Metal and Materials Technology Center , National Science and Technology Development Agency , Thailand Science Park, Phathumthani, 12120, Thailand