JPH0891945A - Method for baking porcelain material - Google Patents
Method for baking porcelain materialInfo
- Publication number
- JPH0891945A JPH0891945A JP23126594A JP23126594A JPH0891945A JP H0891945 A JPH0891945 A JP H0891945A JP 23126594 A JP23126594 A JP 23126594A JP 23126594 A JP23126594 A JP 23126594A JP H0891945 A JPH0891945 A JP H0891945A
- Authority
- JP
- Japan
- Prior art keywords
- lead oxide
- porcelain
- lead
- sagger
- containing material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 90
- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 25
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims abstract description 38
- 150000002611 lead compounds Chemical class 0.000 claims abstract description 34
- 229910000464 lead oxide Inorganic materials 0.000 claims abstract description 34
- 238000010304 firing Methods 0.000 claims description 29
- 239000000203 mixture Substances 0.000 abstract description 17
- 239000000126 substance Substances 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 3
- 230000001976 improved effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 229910000484 niobium oxide Inorganic materials 0.000 description 2
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Ceramic Capacitors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は磁器材料の焼成方法に係
り、特に、鉛化合物を高濃度に含有する磁器材料、とり
わけ誘電体又は圧電体用高濃度鉛化合物含有磁器材料の
焼成に当り、焼成中の当該磁器材料からの鉛化合物の揮
発を防止することにより、所望組成の焼結体を得る方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for firing a porcelain material, and more particularly to the firing of a porcelain material containing a lead compound in a high concentration, particularly a porcelain material containing a high concentration lead compound for a dielectric or a piezoelectric body. It relates to a method for obtaining a sintered body having a desired composition by preventing volatilization of a lead compound from the porcelain material during firing.
【０００２】[0002]
【従来の技術】従来、鉛化合物を高濃度に含有する誘電
体又は圧電体用の磁器材料は、例えば、積層セラミック
コンデンサ、アクチュエータ、センサ素子などの電子部
品に幅広く使用されている。これら誘電体又は圧電体用
高濃度鉛化合物含有磁器材料は、各種産業ないし民生分
野等における電子機器の小型・高性能化に有効な優れた
特性を有することから、近年、増々広く普及する傾向に
ある。2. Description of the Related Art Conventionally, a ceramic material for a dielectric or a piezoelectric material containing a lead compound in a high concentration has been widely used for electronic parts such as a laminated ceramic capacitor, an actuator and a sensor element. These high-concentration lead compound-containing porcelain materials for dielectrics or piezoelectric materials have excellent properties that are effective for miniaturization and high performance of electronic devices in various industries or consumer fields, and thus have become more and more popular in recent years. is there.
【０００３】しかし、高濃度鉛化合物含有磁器材料は、
その焼成に際して、磁器材料から鉛化合物が揮発し易い
という問題がある。鉛化合物の揮発が起こると、磁器材
料を構成する化合物の化学組成が、所望の組成と異なる
ものとなり、目的とする特性が得られない、或いは、製
品に特性のばらつきが生じるなどの不具合を生じる。However, porcelain materials containing high-concentration lead compounds are
During the firing, there is a problem that the lead compound is easily volatilized from the porcelain material. If lead compounds volatilize, the chemical composition of the compounds that make up the porcelain material will differ from the desired composition, and the desired characteristics will not be obtained, or there will be problems such as variations in the characteristics of the product. .
【０００４】このため、鉛化合物を高濃度に含有する磁
器材料の成形体の焼成に当っては、アルミナ、マグネシ
ア、スピネルなどの磁器製の厘中で焼成し、鉛化合物の
揮発を抑制する方法が一般に採用されている。Therefore, when firing a molded body of a porcelain material containing a high concentration of a lead compound, a method of suppressing the volatilization of the lead compound by firing in a porcelain bowl such as alumina, magnesia, or spinel. Is generally adopted.
【０００５】しかし、磁器製の厘中においても磁器材料
からの鉛化合物の揮発は起こり、厘中に所定濃度の鉛化
合物含有ガスの雰囲気を形成する。従来、磁器材料から
揮発する鉛化合物を補い磁器材料の化学組成を維持する
ために、予め磁器材料中の鉛化合物の含有量を所望の組
成よりも過剰にする、或いは磁器材料を同材質の粉末で
覆って焼成する（特開昭５７−５１１７０号公報）など
の焼成方法が提案されている。However, volatilization of the lead compound from the porcelain material occurs even in the porcelain bowl, forming an atmosphere of the lead compound-containing gas having a predetermined concentration in the bowl. Conventionally, in order to supplement the lead compound volatilized from the porcelain material and maintain the chemical composition of the porcelain material, the content of the lead compound in the porcelain material is made excessive in advance than the desired composition, or the porcelain material is a powder of the same material. A firing method has been proposed, such as covering with and firing (JP-A-57-51170).
【０００６】[0006]
【発明が解決しようとする課題】しかし、予め磁器材料
中の鉛化合物の含有量を所望の組成よりも過剰にする方
法では、焼結する際に、過剰な鉛化合物の箇所で液相の
生成が著しく、焼結粒子が巨大化するという不具合があ
る。また、磁器材料を同材質の粉末で覆う方法では、被
覆用粉末の材料費が嵩む上に、焼成後に再度熱処理しな
ければならないなどから、製造コストが著しく大きくな
るという問題点があった。However, in the method of previously making the content of the lead compound in the porcelain material excessive than the desired composition, the liquid phase is generated at the excessive lead compound at the time of sintering. However, there is a problem that the sintered particles become huge. Further, in the method of covering the porcelain material with the powder of the same material, there is a problem that the material cost of the coating powder is increased and the heat treatment is required again after firing, so that the manufacturing cost is significantly increased.
【０００７】本発明は上記従来の問題点を解決し、鉛化
合物を高濃度に含有する磁器材料を焼成するに当り、焼
結粒子の巨大化、焼成コストの高騰といった不具合を生
じることなく磁器材料からの鉛化合物の揮発を防止し
て、所望の化学組成の焼結体を得る方法を提供すること
を目的とする。The present invention solves the above-mentioned conventional problems, and when firing a porcelain material containing a lead compound in a high concentration, the porcelain material does not cause problems such as enlarging sintered particles and increasing firing cost. It is an object of the present invention to provide a method for obtaining a sintered body having a desired chemical composition by preventing volatilization of a lead compound from the above.
【０００８】[0008]
【課題を解決するための手段】本発明の磁器材料の焼成
方法は、鉛化合物を高濃度に含有する磁器材料をセッタ
ーの上に載置して磁器製の厘中で焼成する方法におい
て、該磁器材料を載置したセッターと、酸化鉛を含む材
料を載置したセッターとを重ねて焼成することを特徴と
する。A method of firing a porcelain material according to the present invention is a method of placing a porcelain material containing a lead compound in a high concentration on a setter and firing it in a porcelain bowl. It is characterized in that a setter on which a porcelain material is placed and a setter on which a material containing lead oxide is placed are stacked and fired.
【０００９】以下、図面を参照して本発明の磁器材料の
焼成方法を詳細に説明する。The method of firing the porcelain material of the present invention will be described in detail below with reference to the drawings.
【００１０】図１は本発明の磁器材料の焼成方法の一実
施例方法を示す断面図である。FIG. 1 is a sectional view showing a method of an embodiment of a method for firing a porcelain material according to the present invention.
【００１１】図示の如く、本実施例においては、鉛化合
物を高濃度に含有する磁器材料の成形体３をセッター２
（２Ａ）に載置し、これを多段に積層して磁器製の厘１
内で焼成するに当り、最下段のセッター２Ｂに酸化鉛を
含有する材料４を載置し、その他のセッター２Ａに磁器
材料の成形体３を載置して焼成する。As shown in the figure, in the present embodiment, the setter 2 is a molded body 3 of a porcelain material containing a lead compound in a high concentration.
Place it on (2A) and stack it in multiple layers to make a porcelain bowl 1
When firing inside, the material 4 containing lead oxide is placed on the lowermost setter 2B, and the molded body 3 of porcelain material is placed on the other setter 2A and fired.
【００１２】このように、酸化鉛含有材料４を厘１中に
配置することにより酸化鉛含有材料４からの酸化鉛の揮
発で、厘１内の焼成雰囲気中の鉛化合物濃度が高められ
ることにより、成形体３からの鉛化合物の揮発が抑制さ
れる。As described above, by arranging the lead oxide-containing material 4 in the bowl 1, volatilization of lead oxide from the lead oxide-containing material 4 increases the lead compound concentration in the burning atmosphere in the bowl 1. The volatilization of the lead compound from the molded body 3 is suppressed.
【００１３】本発明で使用される酸化鉛含有材料として
は、焼成する磁器材料よりも、酸化鉛が揮発し易いもの
が用いられ、通常の場合、当該磁器材料を構成する鉛以
外の金属元素のうちの１種又は数種の酸化物と酸化鉛と
を含有するものが用いられる。従って、用いる酸化鉛含
有材料は、磁器材料組成及びその焼成温度に応じて適宜
決定され、例えば、下記表１に示す磁器材料を焼成する
場合、それぞれ表１に示すような組み合せで使用するの
が好ましい。As the lead oxide-containing material used in the present invention, a material in which lead oxide is more easily volatilized than a porcelain material to be fired is used, and usually, a metal element other than lead constituting the porcelain material is used. One containing one or several kinds of oxides and lead oxide is used. Therefore, the lead oxide-containing material used is appropriately determined according to the composition of the porcelain material and the firing temperature thereof. For example, when firing the porcelain material shown in Table 1 below, it is preferable to use the combinations shown in Table 1 respectively. preferable.
【００１４】[0014]
【表１】 [Table 1]
【００１５】厘中に入れる酸化鉛含有材料の量は少な過
ぎると本発明による改良効果が十分に得られず、多過ぎ
ると、相対的に焼成する成形体の個数を低減させること
となり好ましくない。通常の場合、酸化鉛含有材料は焼
成する成形体の総重量に対して１〜５０重量％程度の割
合で用いるのが好ましい。If the amount of the lead oxide-containing material to be put in the bowl is too small, the improvement effect of the present invention cannot be sufficiently obtained, and if it is too large, the number of compacts to be fired is relatively reduced, which is not preferable. Usually, the lead oxide-containing material is preferably used in a proportion of about 1 to 50% by weight based on the total weight of the molded body to be fired.
【００１６】なお、本発明において、酸化鉛含有材料は
特に成形することなく、粉体のまま用いることができ
る。また、厘中の配置部位には特に制限はなく、上段の
セッター或いは中段のセッターに配置しても良い。ま
た、最上段のセッターと最下段のセッターに配置するよ
うにしても良い。In the present invention, the lead oxide-containing material can be used as it is as powder without any particular molding. Further, there is no particular limitation on the placement site in the bowl, and it may be placed in the upper setter or the middle setter. Further, they may be arranged in the uppermost setter and the lowermost setter.
【００１７】本発明の方法は、厘中の少なくとも１つの
セッターに酸化鉛含有材料を載置して焼成すること以外
は、従来と同様に実施することができ、焼成は、通常の
場合、９００〜１２００℃で０．５〜数時間程度実施さ
れる。The method of the present invention can be carried out in the same manner as in the prior art, except that the lead oxide-containing material is placed on at least one setter in the bowl and then fired. It is carried out at about 1200 ° C. for about 0.5 to several hours.
【００１８】[0018]
【作用】磁器製の厘中で、鉛化合物を高濃度に含有する
磁器材料を焼成する際に、該磁器材料から鉛化合物が揮
発し、厘中に所定濃度の鉛化合物雰囲気を形成するが、
その際、磁器材料と共に厘中に酸化鉛を含む材料を入れ
ておくことにより、この酸化鉛含有材料からの酸化鉛の
揮発により、磁器材料からの鉛化合物の揮発を抑制する
ことができる。即ち、磁器材料の焼成温度に応じて酸化
鉛含有材料の組成を変えることで、磁器材料からの鉛化
合物の揮発が活発になる以前に酸化鉛含有材料から酸化
鉛を揮発させ、厘中に所定濃度の鉛化合物雰囲気を形成
させる。これにより、磁器材料からの鉛化合物の揮発を
抑制でき、焼成後の磁器材料の化学組成を所望の組成に
維持することができる。When the porcelain material containing a high concentration of the lead compound is fired in the porcelain bowl, the lead compound is volatilized from the porcelain material to form a lead compound atmosphere of a predetermined concentration in the bowl.
At this time, by putting a material containing lead oxide in the waste together with the porcelain material, volatilization of lead oxide from the lead oxide-containing material can suppress volatilization of the lead compound from the porcelain material. That is, by changing the composition of the lead oxide-containing material according to the firing temperature of the porcelain material, the lead oxide is volatilized from the lead oxide-containing material before the volatilization of the lead compound from the porcelain material becomes active, and the predetermined amount is set during the operation. A lead compound atmosphere of high concentration is formed. Thereby, volatilization of the lead compound from the porcelain material can be suppressed, and the chemical composition of the porcelain material after firing can be maintained at a desired composition.
【００１９】[0019]
【実施例】以下に実施例及び比較例を挙げて本発明をよ
り具体的に説明する。EXAMPLES The present invention will be described more specifically with reference to Examples and Comparative Examples below.
【００２０】実施例１ 一酸化鉛、酸化マグネシウム、酸化ニオブ、酸化第二鉄
及び酸化チタンをＰｂ［（Ｍｇ1/3 Ｎｂ2/3)0.80（Ｆｅ
1/2 Ｎｂ1/2)0.18Ｔｉ0.02］Ｏ3 の組成になるように、
それぞれ秤量し、湿式ボールミル等を用いて十分に混合
した。次に、この混合物を乾燥した後、８００℃で２時
間仮焼した。得られた仮焼物を湿式ボールミルで粉砕し
た後、乾燥した。得られた粉末に、ポリビニルアルコー
ルを加えて成形した後乾燥し、直径１５ｍｍで厚さ１ｍ
ｍの円板状成形体を作成した。この成形体を６００℃で
１時間保持してバインダを除去した。Example 1 Lead monoxide, magnesium oxide, niobium oxide, ferric oxide and titanium oxide were mixed with Pb [(Mg 1/3 Nb 2/3 ) 0.80 (Fe
1/2 Nb 1/2 ) 0.18 Ti 0.02 ] O 3
Each was weighed and thoroughly mixed using a wet ball mill or the like. Next, this mixture was dried and then calcined at 800 ° C. for 2 hours. The obtained calcined product was pulverized with a wet ball mill and then dried. Polyvinyl alcohol was added to the obtained powder, which was then molded and dried, and the diameter was 15 mm and the thickness was 1 m.
A disk-shaped molded body of m was prepared. The molded body was kept at 600 ° C. for 1 hour to remove the binder.
【００２１】別に、一酸化鉛及び酸化ニオブをＰｂ2 Ｎ
ｂ2 Ｏ7 の組成になるように、それぞれ秤量し、湿式ボ
ールミル等を用いて十分に混合した後、乾燥して酸化鉛
含有材料とした。Separately, lead monoxide and niobium oxide were added to Pb 2 N
Each of them was weighed so as to have a composition of b 2 O 7 , sufficiently mixed using a wet ball mill or the like, and then dried to obtain a lead oxide-containing material.
【００２２】図１に示すように厘１中で、成形体３を置
いたセッター２（２Ａ）と、酸化鉛含有材料４を置いた
セッター２（２Ｂ）とを重ねて、電気炉中で１１００℃
で２時間焼成した。なお、用いた酸化鉛含有材料４は２
ｇであり、これは、焼成する成形体の全重量の１４重量
％に相当する。得られた焼結体の両面に銀電極を７００
℃で焼き付けて平行平板コンデンサとし、その電気特性
を調べ、結果を表２に示した。As shown in FIG. 1, a setter 2 (2A) on which the molded body 3 is placed and a setter 2 (2B) on which the lead oxide-containing material 4 is placed are stacked in a kitchen 1 and placed in an electric furnace 1100. ℃
It was baked for 2 hours. The lead oxide-containing material 4 used was 2
g, which corresponds to 14% by weight of the total weight of the shaped body to be fired. 700 silver electrodes were formed on both sides of the obtained sintered body.
The parallel plate capacitor was baked at ℃, the electrical characteristics were examined, and the results are shown in Table 2.
【００２３】なお、誘電率及び誘電損失はＹＨＰデジタ
ルＬＣＲメータモデル４２４７Ａを用い、測定周波数１
ｋＨｚ、測定電圧１．０Ｖｒｍｓ、温度２５℃にて測定
した。また、絶縁抵抗はＹＨＰアナログＩＲメータ４３
２９Ａを使用し、温度２５℃で印加電圧１００Ｖにて１
分後の値を測定した。The dielectric constant and the dielectric loss were measured with a YHP digital LCR meter model 4247A at a measurement frequency of 1
The measurement was performed at a frequency of kHz, a measurement voltage of 1.0 Vrms, and a temperature of 25 ° C. Also, the insulation resistance is YHP analog IR meter 43.
29A, 1 at an applied voltage of 100V at a temperature of 25 ° C
The value after minutes was measured.
【００２４】また、Ｘ線回折法により焼結体の結晶相を
同定した。同定は、常温下、ＣｕＫα線を用い、デフラ
クトメータ（ロータフレックス、理学電気）にて測定す
ることにより行った。The crystal phase of the sintered body was identified by the X-ray diffraction method. The identification was carried out at room temperature by using a CuKα ray and measuring with a defractometer (Rotorflex, Rigaku Denki).
【００２５】Ｘ線回折強度のグラフを図２（ａ）に示
す。A graph of the X-ray diffraction intensity is shown in FIG.
【００２６】比較例１ 酸化鉛含有材料を用いなかったこと以外は、実施例１と
同様にして成形体の焼成を行い、同様に電気特性の測定
及び結晶相の同定を行って結果を表２及び図２（ｂ）に
示した。Comparative Example 1 A molded body was fired in the same manner as in Example 1 except that the lead oxide-containing material was not used, and the electrical characteristics were measured and the crystal phase was identified in the same manner. 2 and FIG. 2 (b).
【００２７】[0027]
【表２】 [Table 2]
【００２８】表２より明らかなように、本発明の焼成方
法により焼成したものは、酸化鉛を含む材料を厘中に入
れない従来の方法により焼成した比較例１のものに比
べ、誘電率の特性が高いことがわかる。As is clear from Table 2, the one fired by the firing method of the present invention has a higher dielectric constant than that of Comparative Example 1 fired by the conventional method in which the material containing lead oxide is not put in the bowl. It can be seen that the characteristics are high.
【００２９】また、図２（ａ），（ｂ）より明らかなよ
うに、本発明の焼成方法により焼成したものは、ペロブ
スカイト相のみであるのに対し、酸化鉛を含む材料を厘
中に入れない従来の方法により焼成した比較例１のもの
では、２θ＝２８．２°付近にパイロクロア相（２２
２）面に相当するピークが観察された。これは、鉛化合
物の揮発による所期化学組成からのずれにより、パイロ
クロア相が生成したものと考えられ、比較例１では、こ
のパイロクロア相の生成により誘電率が低下したものと
推定される。Further, as is clear from FIGS. 2 (a) and 2 (b), while the material fired by the firing method of the present invention is only the perovskite phase, the material containing lead oxide is put in the bowl. In the case of Comparative Example 1 fired by the conventional method which is not used, the pyrochlore phase (22
2) A peak corresponding to the plane was observed. It is considered that this is because the pyrochlore phase was generated due to the deviation from the expected chemical composition due to the volatilization of the lead compound, and in Comparative Example 1, it is presumed that the dielectric constant was lowered due to the formation of the pyrochlore phase.
【００３０】[0030]
【発明の効果】以上詳述した通り、本発明の磁器材料の
焼成方法によれば、鉛化合物を高濃度に含有する磁器材
料を焼成する際の、該磁器材料からの鉛化合物の揮発を
簡便な方法で効果的に抑制することができ、焼成後の磁
器材料の化学組成を所望の組成に維持することができ
る。このため、本発明によれば、目的の特性、即ち、高
い誘電率、低い誘電損失及び高い絶縁抵抗を有する磁器
材料を容易かつ効率的に、しかも安価に得ることができ
る。As described in detail above, according to the method for firing a porcelain material of the present invention, it is easy to volatilize the lead compound from the porcelain material when firing the porcelain material containing a high concentration of the lead compound. Can be effectively suppressed by various methods, and the chemical composition of the porcelain material after firing can be maintained at a desired composition. Therefore, according to the present invention, a porcelain material having desired characteristics, that is, a high dielectric constant, a low dielectric loss, and a high insulation resistance can be easily and efficiently obtained at low cost.
【図１】本発明の磁器材料の焼成方法の一実施例方法を
示す断面図である。FIG. 1 is a cross-sectional view showing an example method of a method for firing a porcelain material according to the present invention.
【図２】実施例１及び比較例１で得られた焼結体のＸ線
回折チャートを示すグラフである。2 is a graph showing an X-ray diffraction chart of the sintered bodies obtained in Example 1 and Comparative Example 1. FIG.
１ 磁器製の厘 ２，２Ａ，２Ｂ セッター ３ 磁器材料の成形体 ４ 酸化鉛含有材料 1 Ceramic porcelain 2,2A, 2B setter 3 Porcelain material compact 4 Lead oxide containing material
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０１Ｌ 41/22 Ａ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location H01L 41/22 A
Claims (1)
セッターの上に載置して磁器製の厘中で焼成する方法に
おいて、該磁器材料を載置したセッターと、酸化鉛を含
む材料を載置したセッターとを重ねて焼成することを特
徴とする磁器材料の焼成方法。1. A method of placing a porcelain material containing a lead compound at a high concentration on a setter and firing the porcelain material in a porcelain bowl, and a setter on which the porcelain material is placed and a material containing lead oxide. A method for firing a porcelain material, which comprises firing a setter on which is placed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23126594A JPH0891945A (en) | 1994-09-27 | 1994-09-27 | Method for baking porcelain material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23126594A JPH0891945A (en) | 1994-09-27 | 1994-09-27 | Method for baking porcelain material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0891945A true JPH0891945A (en) | 1996-04-09 |
Family
ID=16920905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23126594A Withdrawn JPH0891945A (en) | 1994-09-27 | 1994-09-27 | Method for baking porcelain material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0891945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10235253B4 (en) * | 2001-08-02 | 2015-04-23 | Nippon Soken, Inc. | Process for the production of layered dielectrics |
-
1994
- 1994-09-27 JP JP23126594A patent/JPH0891945A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10235253B4 (en) * | 2001-08-02 | 2015-04-23 | Nippon Soken, Inc. | Process for the production of layered dielectrics |
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