1. Department of Materials Science and Engineering National Dong Hwa University Shou‐Feng Hualien 97401 Taiwan
2. Department of Civil Engineering and Environmental Resources Management Dahan Institute of Technology Sin‐Cheng Hualien 97145 Taiwan
3. Graduate School of Opto‐Mechatronics and Materials Wu Feng University Ming‐Hsiung Chiayi 62153 Taiwan