Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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High-compactness fluorescent pyrochlore phase europium zirconate and preparation method thereof
The invention discloses high-compactness fluorescent pyrochlore phase europium zirconate and a preparation method thereof.The preparation method comprises the following steps that zirconium oxide powder and europium oxide powder are mixed and then subjected to first tabletting treatment, and a mixed powder first intermediate is obtained; carrying out first sintering treatment on the mixed powder first intermediate to obtain a europium zirconate second intermediate; and carrying out second sintering treatment on the europium zirconate second intermediate to obtain the high-compactness fluorescent pyrochlore phase europium zirconate, wherein the temperature of the first sintering treatment ranges from 1400 DEG C to 1750 DEG C, and the pressure intensity ranges from 1 atm to 5 atm; the temperature of the second sintering treatment ranges from 500 DEG C to 1600 DEG C, and the pressure intensity ranges from 3.5 GPa to 8 GPa. The europium zirconate easily has a two-phase coexistence form, and more stable pyrochlore phase europium zirconate can be directly synthesized in a mode of combining first sintering treatment (muffle furnace sintering) and second sintering treatment (high-temperature and high-pressure sintering), so that the target product is directly synthesized in a mode of combining the two sintering treatment, and the generation of a transition phase is avoided.
本发明公开了一种高密实度荧光烧绿石相锆酸铕及其制备方法，所述制备方法包括以下步骤：将氧化锆粉末和氧化铕粉末混合后，再进行第一压片处理，得到混合粉末第一中间体；对所述混合粉末第一中间体进行第一烧结处理，得到锆酸铕第二中间体；对所述锆酸铕第二中间体进行第二烧结处理，得到所述高密实度荧光烧绿石相锆酸铕；其中，所述第一烧结处理的温度为1400‑1750℃，压强为1‑5atm；所述第二烧结处理的温度为500‑1600℃，压强为3.5‑8GPa。由于锆酸铕易出现两相共存的形态，通过第一烧结处理(马弗炉烧结)与第二烧结处理(高温高压烧结)结合的方式可以直接合成更加稳定的烧绿石相锆酸铕，所以本发明利用两种烧结组合的方式直接合成目标产物，避免了过渡相的产生。
High-compactness fluorescent pyrochlore phase europium zirconate and preparation method thereof
The invention discloses high-compactness fluorescent pyrochlore phase europium zirconate and a preparation method thereof.The preparation method comprises the following steps that zirconium oxide powder and europium oxide powder are mixed and then subjected to first tabletting treatment, and a mixed powder first intermediate is obtained; carrying out first sintering treatment on the mixed powder first intermediate to obtain a europium zirconate second intermediate; and carrying out second sintering treatment on the europium zirconate second intermediate to obtain the high-compactness fluorescent pyrochlore phase europium zirconate, wherein the temperature of the first sintering treatment ranges from 1400 DEG C to 1750 DEG C, and the pressure intensity ranges from 1 atm to 5 atm; the temperature of the second sintering treatment ranges from 500 DEG C to 1600 DEG C, and the pressure intensity ranges from 3.5 GPa to 8 GPa. The europium zirconate easily has a two-phase coexistence form, and more stable pyrochlore phase europium zirconate can be directly synthesized in a mode of combining first sintering treatment (muffle furnace sintering) and second sintering treatment (high-temperature and high-pressure sintering), so that the target product is directly synthesized in a mode of combining the two sintering treatment, and the generation of a transition phase is avoided.
本发明公开了一种高密实度荧光烧绿石相锆酸铕及其制备方法，所述制备方法包括以下步骤：将氧化锆粉末和氧化铕粉末混合后，再进行第一压片处理，得到混合粉末第一中间体；对所述混合粉末第一中间体进行第一烧结处理，得到锆酸铕第二中间体；对所述锆酸铕第二中间体进行第二烧结处理，得到所述高密实度荧光烧绿石相锆酸铕；其中，所述第一烧结处理的温度为1400‑1750℃，压强为1‑5atm；所述第二烧结处理的温度为500‑1600℃，压强为3.5‑8GPa。由于锆酸铕易出现两相共存的形态，通过第一烧结处理(马弗炉烧结)与第二烧结处理(高温高压烧结)结合的方式可以直接合成更加稳定的烧绿石相锆酸铕，所以本发明利用两种烧结组合的方式直接合成目标产物，避免了过渡相的产生。
High-compactness fluorescent pyrochlore phase europium zirconate and preparation method thereof
一种高密实度荧光烧绿石相锆酸铕及其制备方法
ZOU YONGTAO (Autor:in) / WANG YIPENG (Autor:in) / LI XIN (Autor:in) / JANG NAM-GU (Autor:in) / ZHOU CANGTAO (Autor:in)
02.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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