Usoro nhazi ihu elu nke mkpanaka laser kristal titanium-doped sapphire

Titanium gemstone crystals Ti: Al2O3 (doping ịta 0,35 wt% Ti2O3), na crystal oghere nke dị ka usoro eruba eserese nke elu nhazi usoro nke titanium gemstone crystal Laser mkpanaka nke ugbu a mepụtara na-egosi na fig.

<1> Mbelata nhazi: a na-atụgharị kristal gemstone nke titanium, wee bee n'ime oghere nke nwere kọlụm tetragonal site na ịhapụ ikike nhazi nke ihe dịka 0.4 ruo 0.6 mm dịka nha nke mkpanaka laser mezuru.

<2> Kọlụm siri ike ma na-egweri nke ọma: Oghere kọlụm ahụ na-agbada n'ime akụkụ tetragonal ma ọ bụ cylindrical na 120 ~ 180 # silicon carbide ma ọ bụ boron carbide abrasives na igwe igwe na-egweri siri ike, yana mpe mpe mpe akwa na nke na-enweghị okirikiri nke ± 0.01mm.

<3> Ọgwụgwụ nhazi ihu: titanium gemstone laser bar abụọ njedebe ihu nhazi nke ọma na W40, W20, W10 boron carbide egweri ọgwụgwụ ihu na ígwè diski. N'ime usoro egweri, ekwesịrị ịkwụ ụgwọ nlebara anya iji tụọ ihe kwụ ọtọ nke ihu njedebe.

<4> Chemical-mechanical polishing: chemical-mechanical polishing bụ usoro nke kristal polishing na polishing pad with drops of pre-formulated chemical etching solution. Polishing workpiece na polishing pad maka ikwu ngagharị na esemokwu, mgbe na nnyocha slurry nwere chemical etching gị n'ụlọnga (a na-akpọ polishing mmiri mmiri) mezue polishing na enyemaka nke.

<5> Acid etching: The titanium gemstone mkpanaka mgbe polishing dị ka akọwara n'elu na-etinye n'ime ngwakọta nke H2SO4: H3PO4 = 3: 1 (v / v), na okpomọkụ nke 100-400 ° C, na acid-etched maka 5-30 nkeji. Ebumnuche bụ iwepụ usoro polishing n'elu ogwe laser nke mebere sub-surface mebiri emebi, na iwepu ihe dị iche iche, iji nweta ọkwa atomic nke dị nro na nke dị larịị, iguzosi ike n'ezi ihe nke lattice nke elu dị ọcha.

<6> Ngwọta okpomọkụ dị n'elu: Iji mee ka ọ ghara ịdị na-ekpochapụ nrụgide elu na nchacha a na-emepụta n'ihi usoro nke bu ụzọ wee nweta ebe a na-agbaze n'elu ọkwa atomic, a na-ehichapụ mkpanaka titanium gemstone mgbe etching acid gasịrị na mmiri deionised maka nkeji 5, a na-etinyekwa mkpanaka titanium gemstone na gburugburu 1360 ± 20 ° C na okpomọkụ na ikuku hydrogen na okpomọkụ nke 1360 ± 20 ° C. edobere n'elu ọgwụgwọ okpomọkụ.