CAJ | 학술논문

通过DSC、XRD、SEM、FT‐IR和显微硬度测试等分析手段，研究了冷却方式对99．75Ge23 Se67 Sb10‐02．5RbI玻璃组织、热稳定性以及光学和力学等性能的影响。结果表明，采用空冷制得的试样在8～12μm 波段红外透过率达70％以上，高于水冷试样（64％），但由于空冷冷速慢，氢在硒中的固溶度大，导致杂质吸收也大于水冷试样；空冷试样在280℃热处理20 h可从XRD检测发现明显Sb2 Se3和GeSe2的结晶峰，而水冷试样在300℃热处理20 h后才能检测到结晶峰；经过热处理，水冷试样的最大 K IC值可达到04．14 M Pa?m1／2，较未热处理值提高了26％，且高于空冷试样的最大 K IC （0．368 M Pa? m1／2），因此，水冷试样高温稳定性好，断裂韧性较大，更适合用作微晶化硫系红外玻璃。
통과DSC、XRD、SEM、FT‐IR화현미경도측시등분석수단，연구료냉각방식대99．75Ge23 Se67 Sb10‐02．5RbI파리조직、열은정성이급광학화역학등성능적영향。결과표명，채용공랭제득적시양재8～12μm 파단홍외투과솔체70％이상，고우수랭시양（64％），단유우공랭랭속만，경재서중적고용도대，도치잡질흡수야대우수랭시양；공랭시양재280℃열처리20 h가종XRD검측발현명현Sb2 Se3화GeSe2적결정봉，이수랭시양재300℃열처리20 h후재능검측도결정봉；경과열처리，수랭시양적최대 K IC치가체도04．14 M Pa?m1／2，교미열처리치제고료26％，차고우공랭시양적최대 K IC （0．368 M Pa? m1／2），인차，수랭시양고온은정성호，단렬인성교대，경괄합용작미정화류계홍외파리。
T he effect of cooling methods on the microstructure ,thermal stability ,optical and mechanical proper‐ties of 99 7.5Ge23 Se67 Sb10‐0 2.5RbI glass were studied by DSC ,XRD ,SEM ,FT‐IR and Vickers hardness test in this study .The results indicated that ,for air cooled glass ,the infrared transmittance at wavelength of 8‐12 μm was above 70% ,which was higher than that of water cooled glass (64% ) .However ,due to the slow cooling rate of air cooled ,the solid solubility of hydrogen in selenium increases ,thus the absorption of impurities was also stronger than that of water cooled glass .For the thermal‐treatment samples ,the diffraction peaks of Sb2 Se3 and GeSe2 crystals can be found at 280 ℃/20 h for the glass cooled by air ,but at 300 ℃/20 h for the glass cooled by water .After thermal treat‐ment ,the fracture toughness of water cooled glass can reach to 0 4.14 MPa?m1/2 ,increased 26% compared with that without thermal treatment ,and it was higher than the maximum KIC (0 3.68 MPa?m1/2 ) of air cooled glass .Conse‐quently ,water cooled chalcogenide glass has a higher stability and a better fracture toughness ,thus it was more suitable for preparing micro‐crystallizing chalcogenide glass .