Optimization of mercuric iodide platelets growth by the polymer controlled vapor transport method

Materials Research

L. Fornaro¹  L. Mussio¹  M. Köncke¹  L. Luchini¹  E. Saucedo¹  A. Rivoir¹  E. Quagliata¹ 

[1] ,Facultad de QuímicaMontevideo,Uruguay

关键词: mercuric iodide;    HgI2;    X-ray detectors;   

DOI  :  10.1590/S1516-14391999000200007

来源: SciELO

【 摘 要 】

Mercuric iodide crystals in their platelet habit were grown by the polymer controlled vapor transport method. Mercuric iodide 99% in purity was sublimated at temperatures about 122 - 126 °C and vacuum conditions (10-5 mmHg), after selecting an appropriate polymer. Temperature profiles and experimental heat transfer models were determined for two growth furnaces using different insulator configurations for the cold extreme (air, ceramic wool, grilon, copper and ceramic wool). Growth conditions for few and separate nucleation points and large crystals were determined. Representative samples were characterized by optical microscopy and by measuring the current density and apparent resistivity of the material. Future optimization and comparisons with others mercuric iodide crystal growth methods are included.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License