Abstract
Transparent ceramic is a kind of ceramic which shows a good transparency in specific wavelength range.It is widely used in the fields of lasers,solid-state lighting,scintillator detectors,and magneto-optical isolators.Ever since the development of the first aluminum oxide translucent ceramics"Lucalox"in the 1950s by GE,researchers worldwide fabricated various kinds of transparent and translucent ceramics.There are various kinds of transparent ceramics,and each kind has its unique test methods.Optical windows and transparent armors are mainly used in the vehicle,personal and device protection,with major candidates of aluminum oxynitride and spinel,and test methods in considerations of optical,mechanical and thermal properties;high index ceramic lenses are mainly used in the fabrication of high performance optical parts,with major candidates of aluminum oxynitride,spinel,and yttrium aluminum garnet,and test methods in consideration including refractive index,transmittance,and chromatic dispersion properties;laser ceramics are used as a gain medium in the laser system,with major candidates of neodymium doped yttrium aluminum garnet,ytterbium doped yttrium aluminum garnet,neodymium doped sesquioxide,ytterbium doped sesquioxide and so on,and test methods in consideration including transmittance,absorption,optical homogeneity properties and so on;magneto-optical ceramics are the core part of the optical isolators,with major candidates of terbium aluminum garnet,terbium oxide,terbium gallium garnet,and yttrium iron garnet,and test methods in consideration including Verdet constant,optical and thermal properties,laser-damaged threshold,and so on;electro-optic ceramics are mainly used in the fields of optical modulator,optical storage,photoelectric sensor,spectral filter,optical switch,multicolor electrochromic display device,light valve,memory unit,and so on,with major candidates of lead lanthanum zirconate titanate,lead magnesium niobate-lead titanate,and potassium-sodium niobate based lead-free electro-optic ceramics,and test methods in consideration including ferroelectric,dielectric,and electric-induced light scattering properties;ceramic scintillators are mainly used in the field of high energy physics and medical imaging,with major candidates of cerium doped lutetium aluminum garnet,praseodymium doped lutetium aluminum garnet,cerium doped gadolinium gallium aluminum garnet,and cerium doped gadolinium yttrium gallium aluminum garnet and so on,test methods in consideration includingγ-ray energy spectroscopy,scintillation decay profile,and afterglow;ceramic phosphors are used in the fields of lighting and display,with major candidates of cerium doped yttrium aluminum garnet and cerium doped lutetium aluminum garnet,test methods in consideration including luminous flux and lumen efficiency,chromaticity coordinate,correlated color temperature,color rendering index,and so on;persistent luminescent ceramics are mainly used in the fields of safety at night,fluorescence labeling,optical storage,optical anti-counterfeiting and so on,with major candidates of alkali-earth aluminate long persistence ceramics and sulfide long persistence ceramics,test methods in consideration including photoluminescence excitation and emission spectra,afterglow,and high temperature thermally stimulated luminescence properties.In this paper,we reviewed the test methods of the above mentioned eight kinds of transparent ceramics.The basic principles for the measurement,general test methods,application case studies,and the problems encountered during the test process were also mentioned.关键词
透明陶瓷/光功能陶瓷/测试方法Key words
transparent ceramics/opto-functional ceramics/test methods分类
化学化工
