标题：Synthesis and characterization of yellow pigments fabricated by sol-gel and solid-state reaction routes
作者：Zhao, Xinqiao ;Zhang, Yujun ;Zhang, Xiaoyu
作者机构：[Zhao, Xinqiao ;Zhang, Yujun ] Key Lab. for Liquid-solid Structural Evolution and Processing of Materials of Ministry of Education, Shandong Universit 更多
会议名称：5th International Congress on Ceramics, ICC 2014
会议日期：17 August 2014 through 21 August 2014
来源：Key Engineering Materials
关键词：Near-infrared reflectance; Sol-gel; Solid-state reaction; Yellow pigments
摘要：Novel environment-friendly near-infrared reflective Y5.2Nd0.8MoO12+σ pigments were fabricated by sol-gel and solid-state reaction routes, and the properties of both pigments were compared. The pigments were characterized by XRD, SEM, CIE-L∗a∗b∗ color-measurements, and UV-vis-NIR spectroscopy. The results show that pigments obtained by sol-gel routes crystallize completely at 900 °C, much lower than 1300 °C of solid-state reaction routes. Nano-size pigments fabricated by sol-gel routes possess an average grain size of ∼ 50 nm, largely finer than 3 μm of solid-state reaction ones. Moreover, the sol-gel processed pigments show a higher near-infrared reflectance than solid-state reaction ones, which are 98.3 % and 91.7 %, respectively, but with a slightly light yellow color hue. © (2015) Trans Tech Publications, Switzerland.