Abstract: A dielectric film includes a main component of a complex oxide represented by a general formula of (Sr1-xCax)yTiO3. 0.40?x?0.90 and 0.90?y?1.10 are satisfied. A ratio of a diffraction peak intensity on (1, 1, 2) plane of the complex oxide to a diffraction peak intensity on (0, 0, 4) plane of the complex oxide in an X-ray diffraction chart of the dielectric film is 3.00 or more. Instead, a ratio of an intensity of a diffraction peak appearing at a diffraction angle 2? of 32° or more and 34° or less to an intensity of a diffraction peak appearing at a diffraction angle 2? of 46° or more and 48° or less in an X-ray diffraction chart of the dielectric film obtained by an X-ray diffraction measurement with Cu-K? ray as an X-ray source is 3.00 or more.

Abstract: A method for producing a piezoelectric single crystal ingot shows small variation in the concentration of PbTiO3 in the growth direction of single crystal. A complete solid solution-type piezoelectric single crystal ingot is produced by using the Bridgman method, including: filling a starting material, wherein a relaxor having a compositional formula Pb(B1, B2)O3 is blended with lead titanate having a composition PbTiO3 to give a preset composition, into a crucible for growth; heating to the melting temperature to give a melted liquid layer; then moving the crucible for growth toward the low temperature side; and thus starting one-direction solidification from the lower part of the crucible to thereby produce a single crystal. During solidification, the feedstock containing the relaxor and lead titanate having a maximum grain size ?3 mm is continuously supplied into the crucible.

Abstract: A glass ceramic and a preparation method thereof include a step of melting calcined electrolytic manganese slag to obtain molten glass. The molten glass is sequentially molded, nucleated, and crystallized to obtain the glass ceramic. The calcined electrolytic manganese slag is taken as a raw material, so that harmful gases are not generated in the raw material melting process, and secondary pollution is not caused. The preparation method provided by the present invention has the advantages of simple operation, high utilization rate of electrolytic manganese slag and low cost. Moreover, the prepared glass ceramic has good mechanical properties and corrosion resistance.

Abstract: A dielectric ceramic composition, a method for producing a dieelctric composition and the use of the dielectric composition are disclosed. In an embodiment a ceramic composition includes a main component with a quantity ratio Mg(1+x)(1?y)O3+xA(1+x)ySi(1?z)Dz and a remainder comprising contaminants, wherein 0.01×0.30, wherein 0.00?y?0.20, and wherein 0.00?z?1.00.

Abstract: A multilayer ceramic capacitor includes: a multilayer structure in which each of dielectric layers and each of internal electrode layers are alternately stacked, a main component of the dielectric layers being ceramic, a main component of the internal electrode layers being a metal, wherein: a number of crystal grain boundary of the main component of the internal electrode layer is 1/?m or more in an extension direction of the internal electrode layer; and the internal electrode layers include a grain of which a main component is ceramic.

Abstract: A dielectric ceramic composition includes: Mg2SiO4 as main component; R-containing, Cu-containing, and B-containing compounds, and Li-containing glass, as sub-component. R is an alkaline earth metal. R-containing compound greater than or equal to 0.2 part by mass and less than or equal to 4.0 parts by mass, contained in terms of oxide, Cu-containing compound of greater than or equal to 0.5 part by mass and less than or equal to 3.0 parts by mass, contained in terms of oxide, and B-containing compound greater than or equal to 0.2 part by mass and less than or equal to 3.0 parts by mass, contained in terms of oxide, to 100 parts by mass of main component. Li-containing glass of greater than or equal to 2 parts by mass and less than or equal to 10 parts by mass contained to total a 100 parts by mass of main component, and sub-component excluding Li-containing glass.

Abstract: A dielectric porcelain composition having a main component a perovskite compound represented by ABO3, and the perovskite compound at least contains Ti and a volatile element which forms a solid solution at a B site, and may also contain Zr. The dielectric porcelain composition contains the volatile element in an amount larger than 0 part by mol and less than or equal to 0.2 part by mol with respect to 100 parts by mol of a total of the Ti and the Zr, and has a ratio of an A-site element to the total of the Ti and the Zr of 1.00 or more and 1.04 or less as a molar ratio.

Abstract: A dielectric porcelain composition having a main component of a lead-free perovskite type compound at least containing Ba, Ca, Ti, and Sb, and having a Curie temperature Tc of 140° C. or higher.

Abstract: Disclosed herein are embodiments of materials having high thermal conductivity along with a high dielectric constants. In some embodiments, a two phase composite ceramic material can be formed having a contiguous aluminum oxide phase with a secondary phase embedded within the continuous phase. Example secondary phases include calcium titanate, strontium titanate, or titanium dioxide.

Abstract: A ceramic dielectric composition contains a base material powder represented by one or more of (Ca1-xSrx) (Zr1-yTiy)O3, Ca(Zr1-yTiy)O3, Sr(Zr1-xTiy)O3, (Ca1-xSrx) ZrO3, and (Ca1-xSrx)TiO3, in which x and y satisfy 0?x?1.0 and 0.2?y?0.9, respectively. The ceramic dielectric composition have on may high room-temperature permittivity and excellent ESD protection characteristics and may secure withstand voltage characteristics while implementing relatively high capacitance.

Abstract: An housing for electronic components, such as LEDs and/or FETs, is provided. The housing has a base body having an upper surface that at least partially defines a mounting area for an electronic functional element, such that the base body provides a heat sink for the electronic functional element. The base body has a lower surface and a lateral surface and includes a connecting body for the electronic functional element, which is joined to the base body a glass layer formed by an alkali titanium silicate glass.

Abstract: Enhanced Q high dielectric constant material for microwave applications. In some embodiments, a composition can include a material with a formula Ba4+xSm(2/3)(14?x+0.5y)Ti18?yAlyO54, with the quantity y being in a range 0<y<2, and the quantity x being in a range 0<x<2?y. Such a material can have a dielectric constant value greater than 60 and a Qf value greater than 10,000 at a frequency (f) at or less than 1 GHz. In some embodiments, a material having such properties can be implemented as a ceramic device and be utilized as a dielectric microwave resonator. Such a microwave resonator can be utilized as, for example, a narrowband radio-frequency (RF) filter.

Abstract: A dielectric composition to be sintered at low temperature may include BaTiO3 as a major component; and (1-x)Li2O-xCuO as a minor component, wherein x is 0.1 to 0.9, and the minor component is contained in a content of 0.1 mol % to 2.0 mol % based on 100 mol % of the major component.

Abstract: There are provided a dielectric ceramic composition and a multilayer ceramic capacitor including the same. The dielectric ceramic composition according to embodiments of the present disclosure includes a base powder represented by xSrTiO3-(1?x)BiMO3 (M includes Mg and Ti) containing a first main component represented by SrTiO3 and a second main component represented by BiMO3, wherein x satisfies 0.5?x?0.9.

Abstract: Disclosed are ceramic bodies comprised of a tialite phase and at least one silicate phase with a rare earth oxide and zirconium additions and methods for the manufacture of the same.

Abstract: The high-withstanding-voltage member includes an alumina sintered compact containing alumina as a main crystal. Furthermore, the alumina sintered compact exhibits a peak intensity of 5000 or less at a wavelength of about 330 nm when measured by a cathode luminescence method.

Abstract: There are provided a dielectric composition and a preparation method thereof, the dielectric composition including: a first perovskite powder for a core represented by ABO3: and a second perovskite powder for a shell represented by ABO3, having an average particle diameter corresponding to ? to 1/10 of an average particle diameter of the first perovskite powder, and included in an amount of 1 to 70 parts by weight with respect to 100 parts by weight of the first perovskite powder, wherein particles of the second perovskite powder have pores having a volume fraction of 3 to 50 vol % therein. According to the present invention, there are provided a dielectric composition having excellent dielectric characteristics and electrical characteristics, and a preparation method thereof.

Abstract: Disclosed herein are green bodies comprising at least one ceramic-forming powder; at least one binder; and at least one cross-linked starch present in an amount of at least about 20% by weight as a super addition. Further disclosed herein is a method of making a porous ceramic body comprising mixing at least one ceramic-forming powder, at least one solvent such as water, at least one binder, and at least one cross-linked starch present in an amount of about 20% by weight as a super addition to form a batch composition; extruding the batch composition to form a green body; drying the green body; and firing the green body to form a porous ceramic body. Also disclosed herein are methods of screening a green body for making a porous ceramic body.

Abstract: The photosensitive resin composition contains a (A) binder polymer, (B) cross-linked polymer particles, (C) thermosetting resin, (D) photo-polymerization initiator, and a (E) phosphoric flame retardant, in which a content of the (B) cross-linked polymer particles is 30 parts by weight to 100 parts by weight with respect to the 100 parts by weight of the (A) binder polymer, and an average particle diameter of the (B) cross-linked polymer particles is 1 ?m to 10 ?m. Therefore, the photosensitive resin composition (i) obtains an excellent tack-free property after being applied and dried, (ii) can be subjected to fine processing, (iii) is formed into a cured film having excellent flexibility, flame retardancy, and electrical insulation reliability, and (iv) causes a substrate to have a small warpage after being cured.

Abstract: There are provided a dielectric ceramic composition and a multilayer ceramic capacitor including the same. The dielectric ceramic composition according to embodiments of the present disclosure includes a base powder represented by xSrTiO3-(1?x)BiMO3 (M includes Mg and Ti) containing a first main component represented by SrTiO3 and a second main component represented by BiMO3, wherein x satisfies 0.5?x?0.9.

Abstract: A contactless power transfer system is proposed. The power transfer system comprises a field-focusing element comprising a dielectric material. The dielectric material comprises a composition that is selected from the family of (Ba,Sr)TiO3 or CaCu3Ti4O12. The compositions of the (Ba,Sr)TiO3 include the materials such as Ca1-x-yBaxSryTi1-zCrzO3-?Np, wherein 0<x<1; 0<y<1; 0?z?0.01; 0???1; and 0?p?1. The compositions of the CaCu3Ti4O12 include the materials such as Ca1-x-yBaxSry (Ca1-zCuz)Cu2Ti4-?Al?O12-0.5?, wherein 0?x<0.5; 0?y<0.5; 0?z?1; and 0???0.1.

Abstract: The present invention is directed to perovskite nanostructures of Formula ABO3, wherein A and B represent one or more metals with A having a valence lower than B, to methods of making the perovskite nanostructures of Formula ABO3 comprising their synthesis within and precipitation from reverse micelles, and the use of the perovskite nanostructures of Formula ABO3 as capacitors, and their use in dynamic random access memory, electromechanics, and non-linear optics.

Abstract: The invention is to provide a process of producing the powder of aluminum titanate-based ceramics in which the formation of fine particulate component and coarse particulate component is inhibited, and having a very sharp grain size distribution, efficiently and at good yield. The invention is a process for producing a powder of aluminum titanate-based ceramics, comprising a step of keeping a precursor mixture containing a titanium source powder, an aluminum source powder and a silicon source powder at a temperature range of from 1100° C. to 1350° C. for 3 hours or more, followed by a step of heating the precursor mixture up to 1400° C.

Abstract: The production method of the present invention is a method for producing porous aluminum magnesium titanate by forming a mixture containing Al source powder, Mg source powder, Ti source powder and Si source powder as well as a pore-forming agent to obtain a molded body; presintering the obtained molded body; and then sintering the presintered molded body, wherein the content of the pore-forming agent to a total of 100 parts by mass for the Al source powder, Mg source powder, Ti source powder and Si source powder is 5 to 30 parts by mass, the melting point of the Si source powder is 600 to 1300° C., when the elemental composition ratio of Al, Mg, Ti and Si in the mixture is represented by compositional formula (1): Al2(1?x)MgxTi(1+x)O5+aAl2O3+bSiO2 ??(1), x satisfies 0.05?x?0.15, a satisfies 0?a?0.1 and b satisfies 0.05?b?0.15, and the presintered molded body is sintered at 1300 to 1560° C.

Abstract: The present invention aims to provide an amorphous dielectric film and an electronic component in which the relative permittivity and the temperature coefficient of electrostatic capacitance can be maintained and the withstand voltage can be increased even if the dielectric film is further thinned. The amorphous dielectric film of the present invention is characterized in that it is a dielectric film composed of an amorphous composition with A-B—O as the main component, wherein A contains at least two elements selected from the group consisting of Ba, Ca and Sr, and B contains Zr. When the main component of the dielectric film is represented by (BaxCaySrz)?—B—O, x, y and z meet the conditions of 0?x?1, 0?y?1, 0?z?1, respectively, x+y+z=1 and at least any two of x, y and z are 0.1 or more. When A/B is represented by ?, 0.5???1.5.

Abstract: A piezoelectric device is provided with: a piezoelectric ceramic layer that is obtained by firing a piezoelectric ceramic composition which contains a perovskite composition and an Ag component; and a conductor layer that sandwiches the piezoelectric ceramic layer, wherein Ag is segregated in voids in a sintered body of the perovskite composition in the piezoelectric ceramic layer. The piezoelectric ceramic composition preferably contains a perovskite composition which is represented by (Pba.Rex){Zrb.Tic,.(Ni1/3Nb2/3)d.(Zn1/3Nb2/3)e}O3 (wherein Re represents La and/or Nd, and a-e and x satisfy the following conditions 0.95?a?1.05, 0?x?0.05, 0.35?b?0.45, 0.35?c?0.45, 0<d?0.10, 0.07?e?0.20 and b+c+d+e=1) and 0.05-0.3% by mass of an Ag component in terms of oxides relative to the perovskite composition.

Abstract: An infra-red reflective material is a perovskite-like multiple oxide which includes at least an alkaline-earth metal and at least one type of element selected from a group of titanium, zirconium and niobium, and further, if necessary, manganese and/or iron, an element belonging to the IIIa group of the periodic table such as aluminum and gallium, etc., or zinc, etc., has sufficient infra-red reflective power, is excellent in thermal stability and heat resistance, and does not raise concerns on safety and environmental issues. The infra-red reflective material can be produced by, for example, mixing an alkaline-earth metal compound and a titanium compound and further, if necessary, a manganese compound and/or an iron compound, a compound belonging to the IIIa group of the periodic table, or a zinc compound in predetermined amounts, and firing the mixture.

Abstract: The present invention relates to composite materials with a high dielectric constant and high dielectric strength and to methods of producing the composite materials. The composite materials have high dielectric constants at a range of high frequencies and possess robust mechanical properties and strengths, such that they may be machined to a variety of configurations. The composite materials also have high dielectric strengths for operation in high power and high energy density systems. In one embodiment, the composite material is composed of a trimodal distribution of ceramic particles, including barium titanate, barium strontium titanate (BST), or combinations thereof and a polymer binder.

Abstract: A ternary polycrystalline material based on lead hafnate (PbHfO3) and having improved dielectric, piezoelectric, and/or thermal stability properties. The Pb(Hf,Ti)O3 based material can exhibit enhanced electromechanical coupling factors when compared to PZT based ceramics and can be used as high performance actuators, piezoelectric sensors and/or ultrasonic transducers. The ternary polycrystalline material can have a perovskite crystal structure with an ABO3 formula and can be characterized by a substitution of heterovalent acceptor and donor ions at A or B (Zr/Hf) sites.

Abstract: An insulator for spark plug with a main constituent of alumina and containing silicon includes a grain boundary phase positioned between alumina particles. The grain boundary phase contains: a group 2A element; a rare earth element; and at least one kind of zirconium, titanium, chrome, niobium, manganese, and iron (a first element). Assuming that a total amount of the rare earth element is X (mass %), a total amount of the group 2A element is Y (mass %), and a total amount of the first element is Z (mass %), the following are met: 0.40?Y/X?2.00 0.10?Z/X?0.40.

Abstract: A method for preparing ceramic powders in the presence of a carbon powder including a step which consists in homogenizing a mixture of particles capable of resulting in a ceramic by heat treatment. Said method can be carried out in the presence of an accelerated solvent and provides, at reduced energy consumption, carbon-coated ceramic powders and then ceramics.

Abstract: A method of forming composition-modified barium titanate ceramic particulate includes mixing a plurality of precursor materials and a precipitant solution to form an aqueous suspension. The plurality of precursors include barium nitrate, titanium chelate, and a metal or oxometal chelate. The precipitant solution includes tetraalkylammonium hydroxide and tetraalkylammonium oxalate. The method further includes treating the aqueous suspension at a temperature of at least 150° C. and a pressure of at least 200 psi, and separating particulate from the aqueous suspension after treating.

Abstract: The invention is to provide an aluminum titanate-based ceramics showing a good mechanical strength. The invention is an aluminum titanate-based ceramics obtained by firing a starting material mixture which contains a titanium element and an aluminum element, and further contains a chromium element and/or a tungsten element. Preferably, a content of a chromium source which contains the chromium element is from 0.001 to 5 parts by mass, and a content of a tungsten source which contains the tungsten element is from 0.001 to 1.0 part by mass relative to 100 parts by mass of the starting material mixture.

Abstract: A framework for developing high quality factor (Q) material for electronic applications in the radio frequency range is provided. In one implementation, ceramic materials having a tungsten bronze crystal structure is modified by substituting one or more elements at one or more lattice sites on the crystal structure. The substitute elements are selected based on the ionic radius and other factors. In other implementations, the modified ceramic material is prepared in combination with compositions such as rutile or a perovskite to form a orthorhombic hybrid of perovskite and tetragonal tungsten bronze.

Abstract: A ceramic or single crystal ferroelectric and a method of manufacture are disclosed. The ceramics and single crystals of the present disclosure are located near phase boundaries between ferroelectric and antiferroelectric phases. These ceramics, single crystals, and composite may be used in pulsed power applications.

Abstract: A glass ceramic composition includes a SrZrO3 ceramic, a Li2O—MgO—ZnO—B2O3—SiO2-based glass, Mg2SiO4 in an amount of about 5 to 40 weight percent, and a SrTiO3 ceramic in an amount in the range of about 0 to about 6 weight percent of the total. The Li2O—MgO—ZnO—B2O3—SiO2-based glass accounts for about 1 to about 12 weight percent of the total.

Abstract: Disclosed is a dielectric ceramic composition which has high dielectric constant and suppressed low thermal expansion coefficient. Also disclosed are a multilayer dielectric substrate using the dielectric ceramic composition, and an electronic component. Specifically disclosed is a dielectric ceramic composition which contains an ATiO3 (wherein A represents either Ca and/or Sr) phase and an AAl2Si2O8 phase, said dielectric ceramic composition being characterized in that the dielectric constant is not less than 10 at 3 GHz and the average thermal expansion coefficient over the temperature range of 40-600° C. is less than 7 ppm/° C.

Abstract: A method is provided which includes a reaction step of reacting at least titanium oxide, a calcium compound, and barium hydroxide in a slurry solution so as to produce a perovskite-type composite oxide. The perovskite-type composite oxide is represented by (Ba1-xCax)mTiO3, and x is within a range of 0<x?0.125. In addition, the method provides a perovskite-type composite oxide in which a water-soluble calcium compound is used as the calcium compound, and when the perovskite-type composite oxide is represented by (Ba1-xCax)mTiO3, x is within a range of 0<x?0.20.

Abstract: There is provided a dielectric ceramic composition for high-frequency use represented by a composition formula of a(Sn,Ti)O2-bMg2SiO4-cMgTi2O5-dMgSiO3. In the composition formula, a, b, c and d (provided that a, b, c and d are mol %) are within the following ranges: 4?a?37, 34?b?92, 2?c?15 and 2?d?15, respectively, and a+b+c+d=100. The dielectric ceramic composition for high-frequency use has a relative permittivity ?r of 7.5-12.0, a Qm×fo value of not less than 50000 (GHz) and an absolute value of a temperature coefficient ?f of resonance frequency fo of not more than 30 ppm/° C.

Abstract: Disclosed herein is a dielectric composition including: a dielectric ceramic represented by the following equation: X2Y2Ti4O12 (wherein X is Li, or Na, and Y is Nd, Sm or Bi); and any one additive selected from BaZ2Ti4O12 (wherein Z is Nd, Sm or Bi), (Ti0.55Zn0.15A0.3)O2 (wherein A is Ta or V), CaTiO3, and TiO2.

Abstract: The present disclosure is in the field of electrical circuits and particularly to circuits characterized by plural conductive paths supported on a non-conductive substrate. The disclosure relates to ceramic filler compositions and methods for preparing said compositions. Further, the present disclosure discloses fluoropolymer-ceramic filler compositions and their laminates along with their respective methods for preparing the same. Said fluoropolymer-ceramic filler compositions provide for excellent properties for dielectric constant, loss tangent and temperature coefficient of dielectric constant. In addition, electrical substrate materials comprising of a conductive outer layer supported on a thin sheet of insulating material is also disclosed.

Abstract: Disclosed are ceramic bodies comprised of composite cordierite aluminum magnesium titanate ceramic compositions and methods for the manufacture of same.

Abstract: A mixture of fused grains mainly comprising or composed of an oxide phase of pseudo-brookite type and comprising titanium, aluminum and magnesium, the fused grains having the following chemical composition, in weight percentages on the basis of the oxides: less than 55% of Al2O3; more than 30% and less than 70% of TiO2; more than 1% and less than 15% of MgO, the fused grains also corresponding to the following composition, in molar percentages and on the basis of the single oxides Al2O3, TiO2, MgO: 180?3t+a?220, a?50, m=100?a?t, in which: a is the molar percentage of Al2O3; t is the molar percentage of TiO2; m is the molar percentage of MgO. A ceramic product obtained from such fused grains.

Abstract: This invention relates to a method of making lead-free piezoelectric ceramic films. Specifically, the invention is directed to a method for fabricating lead-free piezoelectric free standing films having enhanced piezoelectric properties. The films may be used for a number of applications including incorporation in microelectronic devices such as energy harvesting devices and sensor technologies.

Abstract: A honeycomb carrier for an exhaust gas-cleaning catalyst to clean e.g. an exhaust gas of an automobile particularly containing NOx, wherein the material for the honeycomb carrier is an aluminum magnesium titanate sintered product obtained by firing at from 1,000 to 1,700° C. a molded product formed from a raw material mixture comprising 100 parts by mass, as calculated as oxides, of a mixture comprising a Mg-containing compound, an Al-containing compound and a Ti-containing compound in the same metal component ratio as the metal component ratio of Mg, Al and Ti in an aluminum magnesium titanate represented by the empirical formula MgxAl2(1+x)Ti(1+x)O5 (wherein 0?x?1), and from 1 to 10 parts by mass of an alkali feldspar represented by the empirical formula (NayK1?y)AlSi3O8 (wherein 0?y?1).

Abstract: A dielectric ceramic and a laminated ceramic capacitor using the dielectric ceramic are achieved which provide favorable thermal shock resistance without damaging properties or characteristics such as dielectric properties, insulation properties, temperature characteristics, and characteristics in high temperature loading, even when the dielectric layers are reduced in thickness and the number of stacked layers increased. The dielectric ceramic contains, as its main constituent, a barium titanate based compound represented by the general formula ABO3, and a crystalline oxide containing Al, Mg, and Si is present as secondary phase grains in the dielectric ceramic.

Abstract: The present invention relates to a basic-refractory composition containing magnesium orthotitanate (Mg2TiO4) and calcium titanate (CaTiO3) suitable for use in rotating kilns for the production of Portland cement or lime.

Abstract: A ceramic honeycomb structure having a large number of flow paths partitioned by porous cell walls, the cell walls comprising at least main crystals of aluminum titanate, in which MgO and SiO2 are dissolved to form a solid solution, and glass phases, the glass phases containing 40-80% by mass of SiO2 and 1-20% by mass of MgO, the average size of the glass phases being 30 ?m or less in a cross section of the cell walls, and the area ratio of the glass phases to the total area of the main crystals of aluminum titanate and the glass phases being 2-12% in a cross section of the cell walls, and its production method.

Abstract: There are provided a reduction-resistant dielectric composition and a ceramic electronic component including the same. The reduction-resistant dielectric composition may include a BaTiO3-based matrix powder, 0.1 to 1.0 moles of a transition metal oxide or transition metal carbonates, based on 100 moles of the matrix powder, and 0.1 to 3.0 moles of a sintering aid including silicon oxide (SiO2). The ceramic electronic component including the reduction-resistant dielectric composition may have a high capacitance and superior reliability.

Abstract: Provided in a dielectric ceramic having flat capacitance characteristics and a high dielectric constant, and a multilayer ceramic electronic component (such as a multilayer ceramic capacitor) in which the dielectric ceramic is used. A multilayer ceramic capacitor includes a multilayer body having a plurality of dielectric ceramic layers and a plurality of internal electrodes, and external electrodes formed on the multilayer body. The composition of the multilayer body includes any of a bismuth layered compound containing Sr, Bi and Ti, a bismuth layered compound containing Sr, Bi and Nb, and a bismuth layered compound containing Ca, Bi and Ti as a primary ingredient, Bi and at least one of Cu, Ba, Zn and Li, and satisfies the conditions that if the Ti content is 400 molar parts or the Nb content is 200 molar parts, then (Bi content-Ti content) or (Bi content-Nb content) is equal to or greater than 1 molar part and less than 7.