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

Titanium gemstone kristal Ti: Al2O3 (doping ịta 0.35 wt% Ti2O3), kristal oghere nke bụ dị ka usoro eruba eserese nke elu usoro nhazi nke titanium gemstone crystal Laser mkpanaka nke ugbu a mepụtara na-egosi na fig 1. Usoro nkwadebe kpọmkwem nke usoro nhazi elu nke titanium gemstone kristal laser nke ihe mepụtara ugbu a bụ ndị a:

<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 gbadara n'ime tetragonal ma ọ bụ cylindrical cross-section na 120 ~ 180 # silicon carbide ma ọ bụ boron carbide abrasives na igwe na-egweri siri ike, na-eji taper na njehie na-apụ apụ. ± 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 iwepu usoro polishing n'elu ogwe laser nke mebere sub-surface mebiri emebi, na iwepu ihe dị iche iche, iji nweta ọkwa atomic nke ire ụtọ na ewepụghị, iguzosi ike n'ezi ihe nke lattice nke elu dị ọcha. .

<6> Ọgwụgwọ okpomọkụ dị n'elu: Iji mee ka ọ dịkwuo mfe iwepụ nrụgide elu na nchacha a na-emepụta n'ihi usoro nke bu ụzọ wee nweta ebe a gbawara agbawa na ọkwa atomic, mkpanaka titanium gemstone mgbe etching acid na-asacha ya na mmiri deionized maka nkeji 5. na mkpanaka nkume gemstone titanium etinyere na gburugburu 1360 ± 20 ° C. na okpomọkụ na-adịgide adịgide nke 1 ruo 3 awa na ikuku hydrogen, na edobere n'elu ọgwụgwọ okpomọkụ.