LASER-INDUCED CALCITE ARAGONITE TRANSITION

被引：8

作者：

ALAM, M ^{[1
]}

DEBROY, T ^{[1
]}

ROY, R ^{[1
]}

机构：

[1] PENN STATE UNIV,MAT RES LAB,UNIVERSITY PK,PA 16802

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 03期

关键词：

calcite; decomposition; lasers; phase transformations; processing;

D O I：

10.1111/j.1151-2916.1990.tb06581.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High‐pressure phases of CaCO3, namely aragonite, calcite II, and possibly calcite III, were synthesized in air by exposing 10‐ to 20‐μm‐size particles of CaCO3 (calcite I phase) to a CO2 laser radiation at short pulse lengths (≤0.1 ms). The process, therefore, has the same effect as exposing the particles to at least several hundred megapascals pressure. Processing at higher pulse lengths resulted in the decomposition of CaCO3 to CaO and CO2. The extent of decomposition increased with increasing pulse length. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：733 / 735

页数：3

共 10 条

[1] HIGH-PRESSURE PHASES OF SIO2 MADE IN AIR BY FEDOSEEV-DERJAGUIN LASER PROCESS [J].