摘要:
A piezoelectric ceramic is expressed by the composition formula 100[(Sr 2-x Ca x ) 1+y/4 Na 1-y Nb 5-2/5z Mn z O 15 ]+±SiO 2 (in the formula, 0 ‰¤ x
摘要翻译:压电陶瓷由组成式100 [(Sr 2-x Ca x)1 + y / 4 Na 1-y Nb 5-2 / 5z Mn z O 15] +±SiO 2表示(式中,0‰ ¤x <0.3,0.1
摘要:
PROBLEM TO BE SOLVED: To provide a piezoelectric material of a strontium calcium sodium niobate-based tungsten bronze structure metal oxide high in a degree of orientation and good in piezoelectric properties, and to provide a piezoelectric element.SOLUTION: The piezoelectric material includes a tungsten bronze structure metal oxide containing at least metallic elements of Sr, Ca, Na and Nb and satisfying the below-described requirements in terms of the molar amounts of the metallic elements, the piezoelectric material being characterized in that W is contained therein, the content of the W is ≥0.40 to ≤3.20 pts.wt. (in terms the metal), per 100 pts.wt. tungsten bronze structure metal oxide, and the tungsten bronze structure metal oxide has c-axis orientation. Wherein, 0.320≤a≤0.430 (a=Sr/Nb), 0.008≤b≤0.086 (b=Ca/Nb), and 0.180≤c≤0.200 (c=Na/Nb).
摘要翻译:解决方案:提供一种取向度高且压电性能好的铌酸钙铌酸铌基钨青铜结构金属氧化物的压电材料,并提供压电元件。 解决方案:压电材料包括至少含有Sr,Ca,Na和Nb的金属元素的钨青铜结构金属氧化物,并且在金属元素的摩尔量方面满足下述要求,压电材料为 其特征在于,其中含有W,W的含量≥0.40〜≤3.20重量份。 (以金属计),每100重量份 钨青铜结构金属氧化物,钨青铜结构金属氧化物具有c轴取向。 其中,0.320≤a≤0.430(a = Sr / Nb),0.008≤b≤0.086(b = Ca / Nb),0.180≤c≤0.200(c = Na / Nb)。 版权所有(C)2012,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a compound having a tungsten bronze structure which is high in Curie temperature, excellent in insulating resistance and mechanical quality factor, and excellent in piezoelectric property. SOLUTION: This compound contains the tungsten bronze structure oxide represented by general formula (1): x(BaB 2 O 6 )-y(CaB 2 O 6 )-zä(Bi 1/2 C 1/2 )B 2 O 6 }, wherein B is at least either one of elements selected from the group consisting of Nb and Ta, C is at least either one of elements selected from the group consisting of Na and K, x+y+z=1, x is 0.2≤x≤0.85, y is 0≤y≤0.5 and z is 0 COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译:要解决的问题:提供一种具有居里温度高的钨青铜结构的化合物,绝缘电阻和机械品质因数优异,并且压电性能优异。 解决方案:该化合物包含由通式(1)表示的钨青铜结构氧化物:x(BaB 2 SBB)O(SBB 2) SB> 0 6 SB>) - ZA的(Bi 1/2 SB> C 1/2 SB>)乙 2 SB> 0 其中B是选自Nb和Ta中的至少一种元素,C是选自Na和K中的至少一种元素,x + y + z = 1,x为0.2≤x≤0.85,y为0≤y≤0.5,z为0
摘要:
PROBLEM TO BE SOLVED: To provide a ferrite magnetic material comprising a main phase of W-type, which has magnetic properties improved through the optimization of additives. SOLUTION: The ferrite magnetic material comprises, as a main phase, a hexagonal W-type ferrite and a Ga-constituent in an amount of 15 wt.% or less (not including zero) expressed in terms of Ga 2 O 3 . The ferrite magnetic material comprises, as a main constituent, a compound represented by composition formula: AFe 2+ a Fe 3+ b O 27 (wherein A comprises at least one element selected from Sr, Ba and Pb; 1.5≤a≤2.1; and 12.9≤b≤16.3). Alternatively, the ferrite magnetic material comprises, as a main constituent, a compound represented by composition formula: AZn c Fe d O 27 (wherein A comprises at least one element selected from Sr, Ba and Pb; 1.1≤c≤2.1; and 13≤d≤17). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译:要解决的问题:提供一种包括W型主相的铁氧体磁性材料,其通过优化添加剂而具有改进的磁性能。 解决方案:铁氧体磁性材料包括以Ga 表示的15重量%以下(不包括零)的量的六方晶型W型铁素体和Ga成分作为主相, 2 SB> O 3 SB>。 铁氧体磁性材料以组成式表示的化合物作为主要成分包含:AFe 2 + SP> a SB> Fe 3 + (其中A包含选自Sr,Ba和Pb中的至少一种元素;1.5≤a≤2.1;和12.9≤b≤16.3)。 或者,铁氧体磁性材料以组成式表示的化合物作为主要成分包含:其中A 包括选自Sr,Ba和Pb中的至少一种元素;1.1≤c≤2.1;和13≤d≤17)。 版权所有(C)2010,JPO&INPIT