摘要:
As a piezoelectric ceramic having an alkaline-containing niobic acid-perovskite structure contains [K1-xNax]1-yLi[Nb1-z-wTazSbw]O3 (x, y, z, and w each indicate a molar ratio, and 0≦x
摘要翻译:作为具有含碱性铌酸钙钛矿结构的压电陶瓷,含有[K1-xNax] 1-yLi [Nb1-z-wTazSbw] O3(x,y,z,w分别表示摩尔比,0&nlE; x 作为主相的<1,0和nlE; y <1,0
摘要:
As a piezoelectric ceramic having an alkaline-containing niobic acid-perovskite structure contains [K1-xNax]1-yLi[Nb1-z-wTazSbw]O3 (x, y, z, and w each indicate a molar ratio, and 0≦x
摘要:
Disclosed is a piezoelectric ceramic which is characterized by containing [K1-xNax]1-yLiy[Nb1-z-wTazSbw]O3 (wherein x, y, z and w each represents a molar ratio and satisfies 0≦x≦1, 0≦y≦1, 0≦z≦1, 0≦w≦1) as the main phase and K3Nb3O6Si2O7 as a sub-phase, while containing, as an additive, a Cu compound in an amount of 0.02-5.0 mol in terms of CuO relative to 100 mol of the main phase.
摘要:
Disclosed is a piezoelectric ceramic which is characterized by containing [K1-xNax]1-yLiy[Nb1-z-wTazSbw]O3 (wherein x, y, z and w each represents a molar ratio and satisfies 0≦x≦1, 0≦y≦1, 0≦z≦1, 0≦w≦1) as the main phase and K3Nb3O6Si2O7 as a sub-phase, while containing, as an additive, a Cu compound in an amount of 0.02-5.0 mol in terms of CuO relative to 100 mol of the main phase.
摘要翻译:公开了一种压电陶瓷,其特征在于含有[K1-xNax] 1-yLiy [Nb1-z-wTazSbw] O3(其中x,y,z和w各自表示摩尔比,并且满足0 @ x @ y @ 1,0 @ z @ 1,0 @ w @ 1)作为主相,K3Nb3O6Si2O7作为副相,同时含有以CuO计为0.02-5.0摩尔的Cu化合物作为添加剂 相对于100相的主相。
摘要:
Provided is an alkali-niobate-based piezoelectric porcelain composition which has a crystal-structure transition point in the range of operation guarantee temperatures and which, despite this, is inhibited from abruptly changing in capacitance. The piezoelectric porcelain composition comprises Li, Na, K, Nb, Ta, Sb, and O as major constituent elements and has an alkali-niobate-based perovskite structure. When the composition has an ABO3 type perovskite structure as a unit lattice in which Z=1, the composition has a transition point at which the crystal structure changes from the monoclinic to the tetragonal system. Thus, the composition has a crystal-structure transition point at −50° C. to 150° C. so as to utilize the high piezoelectric effect produced by the MPB at the crystal-structure transition point and, despite this, has the feature of always satisfying ΔC>0.
摘要:
In a piezoelectric ceramic which has an alkali-containing niobate-based perovskite structure in which constituent elements are Li, Na, K, Nb, and O, a Li3NbO4 crystal phase is intentionally deposited on a piezoelectric ceramic having an alkali-containing niobate-based perovskite structure, whereby sintering becomes possible at about 1000° C. rather than at the normally required sintering temperature of 1050° C. or greater.
摘要:
A piezoelectric ceramic comprising as a main component an alkali-containing niobate-based perovskite structure expressed by a compositional formula (LixNayK1-x-y)a(Nb1-zTaz)O3 (provided: 0.04
摘要翻译:一种压电陶瓷,其特征在于,以组成式(LixNayK1-xy)a(Nb1-zTaz)O3(式中,0.04≤x≤0.1,0≤y≤1,0)表示的含碱铌酸盐类钙钛矿结构体作为主要成分 @ z @ 0.4和0.95 @ a @ 1.005); 其中在构成压电陶瓷的多个晶粒的晶界或晶界三重点处存在含有Si和K的结晶相或非晶相。
摘要:
In a piezoelectric ceramic which has an alkali-containing niobate-based perovskite structure in which constituent elements are Li, Na, K, Nb, and O, a Li3NbO4 crystal phase is intentionally deposited on a piezoelectric ceramic having an alkali-containing niobate-based perovskite structure, whereby sintering becomes possible at about 1000° C. rather than at the normally required sintering temperature of 1050° C. or greater.
摘要:
[Problems] To provide a ceramic composition that retains a high insulation resistance after being fired in a reductive atmosphere to form a laminated body.[Means for Solving the Problem] A novel ceramic composition according to an embodiment of the invention include: (NaxK1-x)(NbyTa1-y)O3 (0≦x≦1.0, 0.3
摘要翻译:[问题]提供一种陶瓷组合物,其在还原性气氛中焙烧之后保持高的绝缘电阻以形成层压体。 [解决问题的手段]根据本发明的实施方案的新型陶瓷组合物包括:(NaxK1-x)(NbyTa1-y)O3(0 @ x @ 1.0,0.3