JP3336197B2 - Pottery glass-ceramic - Google Patents
Pottery glass-ceramicInfo
- Publication number
- JP3336197B2 JP3336197B2 JP16792796A JP16792796A JP3336197B2 JP 3336197 B2 JP3336197 B2 JP 3336197B2 JP 16792796 A JP16792796 A JP 16792796A JP 16792796 A JP16792796 A JP 16792796A JP 3336197 B2 JP3336197 B2 JP 3336197B2
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- glass
- pigment
- weight
- points
- 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.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0009—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing silica as main constituent
Description
【０００１】[0001]
【発明の属する技術分野】本発明は陶芸用ガラス−セラ
ミックに関し、特に低温焼成が可能で光沢のある陶芸用
ガラス−セラミックに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to ceramic glass-ceramics, and more particularly to a ceramic glass-ceramic which can be fired at a low temperature and has high gloss.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】従
来、装飾品などに用いられる陶芸品の表面に光沢をだす
場合、粘土やカオリン等の白色陶土と顔料などを混合し
た混合物で造形して焼成した後に、施釉を行って再び焼
成したり、または造形後直ちに施釉して焼成することに
より、表面に光沢をだすのが一般的である。ところが、
白色陶土と顔料の混合物は焼結させるための焼成温度が
高いために、簡便な焼成炉での焼成は困難であり、発色
する色も限られているという問題がある。また、低温で
一応焼成しても、焼結体がポーラスになるため、施釉を
行った後に再び焼成を行わなければならず、焼成工程が
煩雑になるという問題がある。2. Description of the Related Art Conventionally, when a surface of a pottery product used for decorative items or the like is to be made glossy, it is shaped and mixed with a mixture of white clay such as clay or kaolin and a pigment. After that, the surface is generally glossed by glazing and firing again, or by glazing and firing immediately after molding. However,
Since a mixture of white clay and pigment has a high firing temperature for sintering, it is difficult to fire in a simple firing furnace, and there is a problem that the color developed is limited. Further, even if fired at a low temperature for a time, the sintered body becomes porous, so that firing must be performed again after glaze has been performed, and there is a problem that the firing process becomes complicated.
【０００３】また、陶器、磁器、カラー粘土などで造形
した後に焼成して、表面にニス等の樹脂を塗布して光沢
をだすこともある。ところが、この手法では、表面だけ
のコーティング処理であるために、発色が淡く深みがで
ないという問題がある。また、樹脂などでコーティング
した場合、耐候性に乏しく美観を長期間維持できないと
いう問題もある。[0003] Further, after shaping with ceramics, porcelain, color clay, or the like, firing is performed, and a resin such as varnish is applied to the surface to give gloss. However, in this method, there is a problem that the color is light and the depth is not deep because the coating is performed only on the surface. Further, when coated with a resin or the like, there is also a problem that weather resistance is poor and an aesthetic appearance cannot be maintained for a long time.
【０００４】さらに、陶器、磁器、カラー粘土などで造
形して焼成した後に、表面を研磨して光沢をだすことも
ある。ところが、表面を研磨して光沢をだすためには、
焼結体自体が極めて緻密なものでなければならず、通常
の陶器、磁器、カラー粘土などでは研磨して光沢がでる
ほど緻密な焼結体は得られない。[0004] Further, after shaping and firing with pottery, porcelain, color clay or the like, the surface may be polished to give a gloss. However, in order to polish the surface and make it glossy,
The sintered body itself must be extremely dense, and ordinary ceramics, porcelain, color clay and the like cannot be polished to obtain a dense sintered body that is glossy.
【０００５】本発明に係る陶芸用ガラス−セラミック
は、このような従来技術の問題点に鑑みて発明されたも
のであり、焼結体を得るための焼成温度が高く、かつそ
れ自体では光沢がでにくいことを解消した陶芸用ガラス
−セラミックを提供することを目的とする。The glass-ceramic for ceramics according to the present invention was invented in view of such problems of the prior art, and requires a high sintering temperature for obtaining a sintered body, and itself has a high gloss. It is an object of the present invention to provide a glass-ceramic for ceramics, which eliminates the difficulty of the ceramics.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る陶芸用ガラス−セラミックでは、ケイ
石から成るセラミックフィラー、酸化ナトリウムカリを
含有するホウケイ酸ガラスから成るガラスフリット、及
び顔料から成る陶芸用ガラス−セラミックにおいて、前
記セラミックフィラーをＸ、ホウケイ酸ガラスをＹ、顔
料をＺとしたとき（Ｘ＋Ｙ＋Ｚ＝１００）、以下の組成
点、（Ｘ＝５５、Ｙ＝４５、Ｚ＝０）（Ｘ＝３０、Ｙ＝
７０、Ｚ＝０）（Ｘ＝３０、Ｙ＝５５、Ｚ＝１５）（Ｘ
＝５５、Ｙ＝３０、Ｚ＝１５）の各点を結ぶ線上、又は
この４点に囲まれた組成範囲にあり、ガラスフリットが
セラミックフィラー間に充填されてセラミックフィラー
の表面をコーティングしていることを特徴とする。In order to achieve the above object, a ceramic glass-ceramic according to the present invention comprises a ceramic filler made of silica stone, a glass frit made of borosilicate glass containing potassium sodium oxide, and In a ceramic glass-ceramic made of pigment, when the ceramic filler is X, the borosilicate glass is Y, and the pigment is Z (X + Y + Z = 100), the following composition points are obtained (X = 55, Y = 45, Z = 0) (X = 30, Y =
70, Z = 0) (X = 30, Y = 55, Z = 15) (X
= 55, Y = 30, Z = 15) on the line connecting the points, or within the composition range surrounded by these four points, and the glass frit is filled between the ceramic fillers to coat the surface of the ceramic filler. It is characterized by the following.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態を詳細
に説明する。本発明の陶芸用ガラス−セラミックは、セ
ラミックフィラー、ガラスフリット、及び顔料の３成分
系から成る。また、セラミックフィラーは、ケイ石から
成る。ケイ石は、二酸化シリコン（ＳｉＯ2 ）を主成分
として（９５重量％以上）、酸化アルミニウム（Ａｌ2
Ｏ3 ）、三酸化鉄（Ｆｅ2 Ｏ3 ）、酸化マンガン（Ｍｎ
Ｏ）、酸化カルシウム（ＣａＯ）、及び酸化マグネシウ
ム（ＭｇＯ）などを少量含有する鉱物である。このケイ
石は、焼成の際の保形性を確保すると共に、陶芸品に光
沢を付与するための成分となる。このセラミックフィラ
ーは、３０〜５５重量％の範囲で用いられる。このセラ
ミックフィラーが３０重量％未満になると、焼成する際
の保形性が悪くなる。また、このセラミックフィラーが
５５重量％を越えると、陶芸品の光沢が鈍くなる。した
がって、このセラミックフィラーは、３０〜５５重量％
の範囲で用いられる。Embodiments of the present invention will be described below in detail. The ceramic glass-ceramic of the present invention comprises a ternary system of ceramic filler, glass frit, and pigment. The ceramic filler is made of silica stone. Silica is composed mainly of silicon dioxide (SiO 2 ) (95% by weight or more) and aluminum oxide (Al 2
O 3 ), iron trioxide (Fe 2 O 3 ), manganese oxide (Mn)
O), calcium oxide (CaO), and magnesium oxide (MgO) in small amounts. This silica stone is a component for ensuring shape retention during firing and for imparting gloss to ceramics. This ceramic filler is used in a range of 30 to 55% by weight. When the content of the ceramic filler is less than 30% by weight, shape retention during firing is deteriorated. On the other hand, when the content of the ceramic filler exceeds 55% by weight, the luster of the pottery product becomes dull. Therefore, this ceramic filler contains 30 to 55% by weight.
Used in the range.
【０００８】ガラスフリットは、ホウケイ酸ガラスから
成る。このホウケイ酸ガラスは、ホウ酸とケイ酸の共重
合した網目をもつものであり、例えば二酸化シリコン
（ＳｉＯ2 ）３９重量％、酸化アルミニウム（Ａｌ2 Ｏ
3 ）４重量％、酸化カルシウム（ＣａＯ）６重量％、酸
化ナトリウムカリ（ＫＮａ2 Ｏ）９重量％、ホウ酸（Ｂ
2 Ｏ3 ）３２重量％などから成る。この場合、自重およ
びそれにかかる荷重によて軟化収縮を始める温度である
屈服点は５９０℃である。また、二酸化シリコン（Ｓｉ
Ｏ2 ）４６重量％、酸化アルミニウム（Ａｌ2 Ｏ3 ）３
重量％、酸化カルシウム（ＣａＯ）１１重量％、酸化ナ
トリウムカリ（ＫＮａ2 Ｏ）１２重量％、ホウ酸（Ｂ2
Ｏ3 ）２８重量％なども好適に用いることができる。こ
の場合、屈服点は５８０℃である。このガラスフリット
は、陶芸品の焼結温度を低下させると共に、陶芸品に光
沢を付与するための成分となる。このガラスフリット
は、３０〜７０重量％の範囲で用いられる。ガラスフリ
ットが３０重量％未満になると陶芸品の光沢が鈍くな
る。また、ガラスフリットが７０重量％を越えると、相
対的にセラミックフィラーの量が少なくなり、焼成する
際の保形性が悪くなる。[0008] The glass frit is made of borosilicate glass. This borosilicate glass has a network in which boric acid and silicic acid are copolymerized. For example, silicon dioxide (SiO 2 ) 39% by weight, aluminum oxide (Al 2 O)
3 ) 4% by weight, calcium oxide (CaO) 6% by weight, sodium oxide potassium (KNa 2 O) 9% by weight, boric acid (B
2 O 3 ) 32% by weight or the like. In this case, the yield point, which is the temperature at which softening and contraction starts due to its own weight and the load applied thereto, is 590 ° C. In addition, silicon dioxide (Si
O 2 ) 46% by weight, aluminum oxide (Al 2 O 3 ) 3
%, Calcium oxide (CaO) 11% by weight, sodium oxide potassium (KNa 2 O) 12% by weight, boric acid (B 2
O 3 ) 28% by weight can also be suitably used. In this case, the yield point is 580 ° C. The glass frit serves as a component for lowering the sintering temperature of the pottery article and imparting gloss to the pottery article. This glass frit is used in a range of 30 to 70% by weight. When the glass frit is less than 30% by weight, the luster of the pottery product becomes dull. On the other hand, when the glass frit exceeds 70% by weight, the amount of the ceramic filler becomes relatively small, and the shape retention during firing deteriorates.
【０００９】顔料は金属酸化物などの金属化合物などか
ら成る。この顔料には、例えばコバルト化合物、銅化合
物、マンガン化合物、ニッケル化合物、ウラニウム化合
物、クロム化合物、鉄化合物、チタニウム化合物、バナ
ジウム化合物などがある。このような顔料は、１５重量
％までの範囲で添加される。この顔料を１５重量％を越
えて添加すると、発色が暗くなって美観を損ねると共
に、高価になる。The pigment comprises a metal compound such as a metal oxide. Examples of the pigment include a cobalt compound, a copper compound, a manganese compound, a nickel compound, a uranium compound, a chromium compound, an iron compound, a titanium compound, and a vanadium compound. Such pigments are added up to 15% by weight. If this pigment is added in an amount exceeding 15% by weight, the color is darkened, the appearance is impaired, and the pigment becomes expensive.
【００１０】このようなホウケイ酸ガラスなどの低融点
ガラスから成るガラスフリット、ケイ石から成るセラミ
ックフィラー、及び顔料を添加して焼成すると、ガラス
マトリックスにセラミックフィラーおよび顔料が分散し
て存在する形をとって緻密化が生じ、１０００℃未満の
低温で焼成できる。焼結体全体が顔料で着色されて深み
のある色になると共に、光沢のある焼結体となる。When a glass frit made of a low melting point glass such as borosilicate glass, a ceramic filler made of silica stone, and a pigment are added and fired, a form in which the ceramic filler and the pigment are dispersed in a glass matrix is formed. Therefore, densification occurs, and firing can be performed at a low temperature of less than 1000 ° C. The entire sintered body is colored with a pigment to have a deep color and a glossy sintered body.
【００１１】図１に３成分系の組成範囲を示す。なお、
図中の数字は後述する実施例と比較例に示した組成点で
ある。セラミックフィラーをＸ、ホウケイ酸ガラスを
Ｙ、顔料をＺとしたとき（Ｘ＋Ｙ＋Ｚ＝１００）、（Ｘ
＝５５、Ｙ＝４５、Ｚ＝０）、（Ｘ＝３０、Ｙ＝７０、
Ｚ＝０）、（Ｘ＝３０、Ｙ＝５５、Ｚ＝１５）、（Ｘ＝
５５、Ｙ＝３０、Ｚ＝１５）の各点を結ぶ線上、又はこ
の４点に囲まれた組成範囲になるように設定される。FIG. 1 shows the composition range of the three-component system. In addition,
The numbers in the figure are composition points shown in Examples and Comparative Examples described later. When the ceramic filler is X, the borosilicate glass is Y, and the pigment is Z (X + Y + Z = 100), (X
= 55, Y = 45, Z = 0), (X = 30, Y = 70,
(Z = 0), (X = 30, Y = 55, Z = 15), (X =
55, Y = 30, Z = 15) are set on a line connecting the points or the composition range surrounded by these four points.
【００１２】[0012]
【実施例】表１に示すような組成の低融点ホウケイ酸ガ
ラスとセラミックフィラーとして平均粒径１．２６μｍ
純度９９％のケイ石および顔料としてコバルトアルミネ
ートブルースピネル（ＣｏＡｌ2 Ｏ4 ）を用い、表２の
実施例１−１１および比較例１−１０に示す割合の成分
となるように原料を調整した。これらの原料に水を加
え、更に結合剤としてメチルセルロース、可塑剤として
ＤＯＰを添加して粘土を作成した。これを１ｍｍ×７ｍ
ｍ×２５ｍｍの板状に成形し、大気中９００℃で２時間
焼成して、ガラス−セラミック焼結体を得た。評価は、
目視による光沢、保形性の有無、発色の明るさを調べ
た。表２中、光沢の欄の○印はスムーズな面で光沢がで
ているものを示し、×印はラフな面で光沢が乏しいもの
を示す。また、保形性の欄の○印は成形時の形状を保っ
ているものを示し、×印は成形時の形状を残していない
ものを示す。さらに、発色の明るさの欄の○印は明るい
ものを示し、×印は暗いものを示す。EXAMPLES Low melting point borosilicate glass having the composition shown in Table 1 and a ceramic filler having an average particle size of 1.26 μm
Raw materials were adjusted so that the components had the proportions shown in Example 1-11 and Comparative Example 1-10 in Table 2 using silica alumina having a purity of 99% and cobalt aluminate blue spinel (CoAl 2 O 4 ) as the pigment. . Clay was prepared by adding water to these raw materials, further adding methylcellulose as a binder, and DOP as a plasticizer. This is 1mm x 7m
It was formed into a mx 25 mm plate and fired in the air at 900 ° C for 2 hours to obtain a glass-ceramic sintered body. Evaluation,
The gloss by visual inspection, the presence or absence of shape retention, and the brightness of color development were examined. In Table 2, a circle in the gloss column indicates that the surface is smooth and glossy, and a cross indicates that the surface is rough and has low gloss. Further, in the column of the shape preserving property, a mark “っ て い” indicates that the shape at the time of molding is maintained, and a mark “X” indicates that the shape at the time of molding is not left. Further, in the column of the color development brightness, a circle indicates a bright one, and a cross indicates a dark one.
【００１３】[0013]
【表１】 [Table 1]
【００１４】[0014]
【表２】 [Table 2]
【００１５】表２の結果から、実施例１〜１１の焼結体
はいずれも発色が明るく光沢があり、保形性も優れてい
ることがわかる。比較例１、２の焼結体は保形性はよい
が、ホウケイ酸ガラスの添加量が３０％未満であるた
め、光沢が鈍い。比較例３、４の焼結体は光沢はあるも
のの、ホウケイ酸ガラスの添加量が７０％を越えている
ため、保形性が乏しかった。比較例５、６の焼結体はホ
ウケイ酸ガラスの添加量が３０％であるが、ケイ石の添
加量が５５％を越えているため、保形性はあるものの光
沢が鈍かった。比較例７、８の焼結体はホウケイ酸ガラ
スの添加量が７０％にもかかわらず、ケイ石の添加量が
３０％未満のため、光沢はあるが保形性が乏しかった。
比較例９、１０の焼結体については光沢もあり、保形性
も優れているが、顔料の添加量が１５％を越えているた
め、発色が暗くなり、美観が悪かった。From the results shown in Table 2, it can be seen that all of the sintered bodies of Examples 1 to 11 are bright in color, glossy, and excellent in shape retention. The sintered bodies of Comparative Examples 1 and 2 have good shape retention, but have a low gloss because the added amount of borosilicate glass is less than 30%. The sintered bodies of Comparative Examples 3 and 4 were glossy, but had poor shape retention because the added amount of borosilicate glass exceeded 70%. In the sintered bodies of Comparative Examples 5 and 6, the addition amount of borosilicate glass was 30%, but the addition amount of silica exceeded 55%. The sintered bodies of Comparative Examples 7 and 8 were glossy but poor in shape retention because the added amount of silica was less than 30% despite the added amount of borosilicate glass of 70%.
The sintered bodies of Comparative Examples 9 and 10 were glossy and excellent in shape retention, but because the added amount of the pigment exceeded 15%, the color development was dark and the appearance was poor.
【００１６】[0016]
【発明の効果】以上のように、本発明に係る陶芸用ガラ
ス−セラミックによれば、ケイ石から成るセラミックフ
ィラー、酸化ナトリウムカリを含有するホウケイ酸ガラ
スから成るガラスフリット、及び顔料から成る陶芸用ガ
ラス−セラミックにおいて、前記セラミックフィラーを
Ｘ、ホウケイ酸ガラスをＹ、顔料をＺとしたとき（Ｘ＋
Ｙ＋Ｚ＝１００）、以下の組成点、（Ｘ＝５５、Ｙ＝４
５、Ｚ＝０）（Ｘ＝３０、Ｙ＝７０、Ｚ＝０）（Ｘ＝３
０、Ｙ＝５５、Ｚ＝１５）（Ｘ＝５５、Ｙ＝３０、Ｚ＝
１５）の各点を結ぶ線上、又はこの４点に囲まれた組成
範囲にあり、ガラスフリットがセラミックフィラー間に
充填されてセラミックフィラーの表面をコーティングし
ていることから、ガラスフリットが焼成によってメルト
し、セラミックフィラー間に充填することにより結合さ
れると共に、ガラスフリットが表面をコーティングする
ため、１０００℃未満の低温で焼成ができ、安価で簡便
な炉での焼成が可能となる。また、焼結体は緻密体にな
り、発色に深みがあると共に、表面にセルフグレーズが
かかり、スムーズな面で光沢がでて美しく、初期美観を
長期にわたって維持できる。As described above, according to the ceramic glass-ceramic according to the present invention, a ceramic filler composed of silica stone, a glass frit composed of borosilicate glass containing sodium potassium oxide, and a ceramic ceramic composed of pigment In a glass-ceramic, when the ceramic filler is X, the borosilicate glass is Y, and the pigment is Z (X +
Y + Z = 100), the following composition points, (X = 55, Y = 4)
5, Z = 0) (X = 30, Y = 70, Z = 0) (X = 3
0, Y = 55, Z = 15) (X = 55, Y = 30, Z =
Since the glass frit is filled between the ceramic fillers and coats the surface of the ceramic filler on the line connecting the points of 15) or in the composition range surrounded by the four points, the glass frit is melted by firing. Since the glass frit coats the surface while being filled by filling between the ceramic fillers, firing can be performed at a low temperature of less than 1000 ° C., and firing in an inexpensive and simple furnace is possible. In addition, the sintered body becomes a dense body, has a deep color development, has a self-glazing on the surface, has a smooth surface, is glossy and beautiful, and can maintain the initial beauty for a long time.
【図１】本発明に係る陶芸用ガラス−セラミックス組成
物の組成範囲と実施例および比較例に示した組成点との
関係を示す図である。FIG. 1 is a view showing the relationship between the composition range of a glass-ceramic composition for ceramics according to the present invention and the composition points shown in Examples and Comparative Examples.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 35/14 - 35/22 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) C04B 35/14-35/22
Claims (1)
化ナトリウムカリを含有するホウケイ酸ガラスから成る
ガラスフリット、及び顔料から成る陶芸用ガラス−セラ
ミックにおいて、前記セラミックフィラーをＸ、ホウケ
イ酸ガラスをＹ、顔料をＺとしたとき（Ｘ＋Ｙ＋Ｚ＝１
００）、以下の組成点、（Ｘ＝５５、Ｙ＝４５、Ｚ＝
０）（Ｘ＝３０、Ｙ＝７０、Ｚ＝０）（Ｘ＝３０、Ｙ＝
５５、Ｚ＝１５）（Ｘ＝５５、Ｙ＝３０、Ｚ＝１５）の
各点を結ぶ線上、又はこの４点に囲まれた組成範囲にあ
り、ガラスフリットがセラミックフィラー間に充填され
てセラミックフィラーの表面をコーティングしているこ
とを特徴とする陶芸用ガラス−セラミック。1. A ceramic filler comprising silica, an acid
Glass frit consisting of borosilicate glass containing potassium silicate and ceramic glass-cera consisting of pigment
In the MIC , when the ceramic filler is X, the borosilicate glass is Y, and the pigment is Z (X + Y + Z = 1
00), the following composition points: (X = 55, Y = 45, Z =
0) (X = 30, Y = 70, Z = 0) (X = 30, Y =
55, Z = 15) (X = 55, Y = 30, Z = 15) on the line connecting the points or in the composition range surrounded by these four points, and the glass frit is filled between the ceramic fillers.
A ceramic-filled glass-ceramic characterized in that the surface of the ceramic filler is coated with a ceramic filler .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16792796A JP3336197B2 (en) | 1996-06-27 | 1996-06-27 | Pottery glass-ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16792796A JP3336197B2 (en) | 1996-06-27 | 1996-06-27 | Pottery glass-ceramic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1017358A JPH1017358A (en) | 1998-01-20 |
| JP3336197B2 true JP3336197B2 (en) | 2002-10-21 |
Family
ID=15858647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16792796A Expired - Fee Related JP3336197B2 (en) | 1996-06-27 | 1996-06-27 | Pottery glass-ceramic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3336197B2 (en) |
-
1996
- 1996-06-27 JP JP16792796A patent/JP3336197B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1017358A (en) | 1998-01-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |