Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing complete mosaic-shaped barium strontium titanate solid solution ceramic sheet
The invention relates to a method for preparing a complete mosaic-shaped barium strontium titanate solid solution ceramic sheet. The method comprises the following steps: (1) uniformly mixing two kinds of initial powder; the preparation method comprises the following steps: mechanically mixing nano barium titanate powder and nano strontium titanate powder in a certain stoichiometric ratio for 24 hours through a planetary ball mill, drying and grinding to obtain powder to be sintered; (2) putting powder to be sintered into a graphite mold in two times, separating the two parts of powder by using two pieces of carbon paper, and pre-pressing in a manual rotary tablet press and a discharge plasma sintering furnace; (3) carrying out spark plasma sintering, setting proper sintering parameters, starting a sintering program, rapidly cooling to a safe temperature 900 DEG C at which crystal grains are not easy to continuously grow after sintering, and then slowly cooling to 600 DEG C at a speed of 5 DEG C/min; and (4) putting the sintered sample into a muffle furnace, and annealing at 800 DEG C for 10 hours to obtain two relatively complete mosaic-shaped barium strontium titanate solid solution sheets.
本发明涉及一种制备完整马赛克状钛酸锶钡固溶体陶瓷薄片的方法，该方法包括以下步骤：(1)将两种初始粉体混合均匀。将一定化学计量比的纳米钛酸钡粉体和纳米钛酸锶粉末通过行星球磨机机械混合24h后，干燥并研磨，得到待烧结的粉体；(2)将待烧结的粉体分两次放入石墨模具中，两份粉体间用两片碳纸隔开，并在手动旋转压片机和放电等离子烧结炉中预压；(3)进行放电等离子烧烧结，设置合适的烧结参数，并启动烧结程序，烧结结束先快速降温至一个晶粒不易继续生长的安全温度900℃，再以5℃/min缓慢降温至600℃；(4)将烧结后的样品放至马弗炉，800℃退火10h，得到两片较完整的马赛克状钛酸锶钡固溶体薄片。
Method for preparing complete mosaic-shaped barium strontium titanate solid solution ceramic sheet
The invention relates to a method for preparing a complete mosaic-shaped barium strontium titanate solid solution ceramic sheet. The method comprises the following steps: (1) uniformly mixing two kinds of initial powder; the preparation method comprises the following steps: mechanically mixing nano barium titanate powder and nano strontium titanate powder in a certain stoichiometric ratio for 24 hours through a planetary ball mill, drying and grinding to obtain powder to be sintered; (2) putting powder to be sintered into a graphite mold in two times, separating the two parts of powder by using two pieces of carbon paper, and pre-pressing in a manual rotary tablet press and a discharge plasma sintering furnace; (3) carrying out spark plasma sintering, setting proper sintering parameters, starting a sintering program, rapidly cooling to a safe temperature 900 DEG C at which crystal grains are not easy to continuously grow after sintering, and then slowly cooling to 600 DEG C at a speed of 5 DEG C/min; and (4) putting the sintered sample into a muffle furnace, and annealing at 800 DEG C for 10 hours to obtain two relatively complete mosaic-shaped barium strontium titanate solid solution sheets.
本发明涉及一种制备完整马赛克状钛酸锶钡固溶体陶瓷薄片的方法，该方法包括以下步骤：(1)将两种初始粉体混合均匀。将一定化学计量比的纳米钛酸钡粉体和纳米钛酸锶粉末通过行星球磨机机械混合24h后，干燥并研磨，得到待烧结的粉体；(2)将待烧结的粉体分两次放入石墨模具中，两份粉体间用两片碳纸隔开，并在手动旋转压片机和放电等离子烧结炉中预压；(3)进行放电等离子烧烧结，设置合适的烧结参数，并启动烧结程序，烧结结束先快速降温至一个晶粒不易继续生长的安全温度900℃，再以5℃/min缓慢降温至600℃；(4)将烧结后的样品放至马弗炉，800℃退火10h，得到两片较完整的马赛克状钛酸锶钡固溶体薄片。
Method for preparing complete mosaic-shaped barium strontium titanate solid solution ceramic sheet
一种制备完整马赛克状钛酸锶钡固溶体陶瓷薄片的方法
HU JIANFENG (Autor:in) / JIANG YIBIN (Autor:in) / LIU GUANGCHAO (Autor:in) / LI JINGYU (Autor:in) / PAN XINLEI (Autor:in)
16.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
G01J
Messen der Intensität, der Geschwindigkeit, der spektralen Zusammensetzung, der Polarisation, der Phase oder der Pulscharakteristik von infrarotem, sichtbarem oder ultraviolettem Licht
,
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
/
G01R
Messen elektrischer Größen
,
MEASURING ELECTRIC VARIABLES
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