541206
铌酸钾
别名:
Niobium potassium oxide (KNbO3 ), Potassium metaniobate, Potassium niobium trioxide
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关于此项目
线性分子式:
KNbO3
化学文摘社编号:
分子量:
180.00
EC 号:
MDL编号:
UNSPSC代码:
12352300
PubChem化学物质编号:
NACRES:
NA.23
表单
powder
SMILES字符串
[K+].[O-][Nb](=O)=O
InChI
1S/K.Nb.3O/q+1;;;;-1
InChI key
UKDIAJWKFXFVFG-UHFFFAOYSA-N
一般描述
Potassium niobate (KNbO3, KN) is a perovskite-type well-known ferroelectric material with a wide range of applications in electromechanical, nonlinear optical, frequency doubler, and holographic storage system applications. Single crystal of a KNbO3 is known to have high piezoelectric activity because of its high electromechanical coupling factors. Therefore KN materials have received much interest in the development of lead-free piezoelectric materials.
应用
Potassium niobate can be used to prepare bismuth sodium titanate(BNT)-KN ceramics (BNT–KN ceramics) by the mixed oxide method. The addition of KN to the BNT system increases the dielectric and piezoelectric properties of the BNT-KN ceramics. These properties of the ceramic system are suitable for the development of lead-free capacitors. Cu dopped KNbO3 single crystals also found application in semiconductor laser technology because Cu doping resulted in electronic states with near-infrared absorption bands.
储存分类代码
13 - Non Combustible Solids
WGK
WGK 2
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
新产品
Qi Wang et al.
International journal of oral science, 1(2), 99-104 (2009-06-01)
The piezoelectric properties and cytotoxicity of a porous lead-free piezoelectric ceramic for use as a direct bone substitute were investigated. Cold isostatic pressing (CIP) was applied to fabricate porous lithium sodium potassium niobate (Li0.06Na0.5K0.44) NbO3 specimens using a pore-forming method.
F Dutto et al.
Nano letters, 11(6), 2517-2521 (2011-05-26)
We have synthesized and characterized three types of perovskite alkaline niobate nanowires: NaNbO(3), KNbO(3), and LiNbO(3) (XNbO(3)). All three types of nanowires exhibit strong nonlinear response. Confocal imaging has been employed to quantitatively compare the efficiency of synthesized nanowires to
Isaku Kanno et al.
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 54(12), 2562-2566 (2008-02-16)
(K(x),Na(1-x))NbO(3) (KNN) thin films were deposited on (001)SrRuO(3)/(001)Pt/(001)MgO substrates by RF-magnetron sputtering, and their piezoelectric properties were investigated. The x-ray diffraction measurements indicated that the KNN thin films were epitaxially grown with the c-axis orientation in the perovskite tetragonal system.
Jun-Feng Liu et al.
Journal of nanoscience and nanotechnology, 2(6), 617-619 (2003-08-12)
Orthorhombic and rhombohedral single nanocrystalline KNbO3 with different morphologies was synthesized respectively at a relatively low temperature by simply changing the reaction solvent; a conceivable reaction process was illustrated based on the finding of a hexahedral intermediate product during the
Yuri Nakayama et al.
Nature, 447(7148), 1098-1101 (2007-06-29)
One crucial challenge for subwavelength optics has been the development of a tunable source of coherent laser radiation for use in the physical, information and biological sciences that is stable at room temperature and physiological conditions. Current advanced near-field imaging
商品
A significant limiting factor for wearable electronics and wireless sensors is the finite amount of energy that can be stored in on-board batteries.
Among various ceramics, one-dimensional (1-D) piezoelectric ceramics have attracted significant scientific attention for use in energy harvesting.
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