Preparation of high-quality YAG:Ce3+ ceramic phosphor by high-frequency induction heated press sintering methods
Seok Bin Kwon, Jung Hyeon Yoo, Seung Hee Choi, MinYoung Na, Bo Young Kim, Seon Young Lee, Ho-Jung Jeong, Wan Ho Kim, Seoung Hyok Park, Ho Shin Yoon, Bong Kyun Kang, Young Hyun Song, Dae Ho Yoon
Abstract
This study investigates the characteristics of a ceramic phosphor (CP) for the converter of a high-power laser diode-based automobile headlamp synthesized by high-frequency induction heated press (HFP) sintering. The CP prepared by an HFP method exhibits remarkable optical properties that are comparable to spark plasma sintering. The effects of post-treatment process for controlling residual pores, as well as sintering temperature, sintering pressure and heating rate for optimization of the HFP sintering method, were studied. The HFP sintering process can be widely used in ceramics and lighting fields because it is designed relatively low cost compared to other techniques and exhibits excellent productivity.