JP2004238273A5

JP2004238273A5 -

Info

Publication number: JP2004238273A5
Application number: JP2003090205A
Authority: JP
Filing date: 2003-03-28
Publication date: 2009-01-15
Anticipated expiration: 2023-03-28

Description

【特許請求の範囲】
【請求項１】ビスマス系ガラス組成物であって、
ＳｉＯ₂を１．７〜１２重量％、Ｂ₂Ｏ₃を３〜９重量％、ＺｎＯを９．５〜１９重量％、Ｂｉ₂Ｏ₃を６２〜８０重量％、およびＡｌ₂Ｏ₃を０．１〜４重量％含み、
さらに、Ａ群酸化物を５重量％以下、Ｂ群酸化物を１２重量％以下、およびＣ群酸化物を０．１〜１０重量％含み、
Ａ群酸化物が、Ｌｉ₂Ｏ、Ｎａ₂ＯおよびＫ₂Ｏよりなる群から選ばれる少なくとも１種であり、
Ｂ群酸化物が、ＭｇＯ、ＣａＯ、ＳｒＯおよびＢａＯよりなる群から選ばれる少なくとも１種であり、
Ｃ群酸化物が、Ｓｃ₂Ｏ₃、Ｙ₂Ｏ₃、Ｌａ₂Ｏ₃、ＣｅＯ₂、Ｐｒ₂Ｏ₃、Ｎｄ₂Ｏ₃、Ｓｍ₂Ｏ₃、Ｅｕ₂Ｏ₃、Ｇｄ₂Ｏ₃、Ｔｂ₂Ｏ₃、Ｄｙ₂Ｏ₃、Ｈｏ₂Ｏ₃、Ｅｒ₂Ｏ₃、Ｔｍ₂Ｏ₃、Ｙｂ₂Ｏ₃およびＬｕ₂Ｏ₃よりなる群から選ばれる少なくとも１種であるビスマス系ガラス組成物。
【請求項２】ビスマス系ガラス組成物であって、
ＳｉＯ₂を１．１〜４．５重量％、Ｂ₂Ｏ₃を４〜９重量％、ＺｎＯを９．５〜１８重量％、およびＢｉ₂Ｏ₃を７２〜８５重量％含み、
さらに、Ａ群酸化物を４重量％以下、Ｂ群酸化物を８重量％以下、およびＣ群酸化物を５重量％以下含み、
Ａ群酸化物が、Ｌｉ ₂ Ｏ、Ｎａ ₂ ＯおよびＫ ₂ Ｏよりなる群から選ばれる少なくとも１種であり、
Ｂ群酸化物が、ＭｇＯ、ＣａＯ、ＳｒＯおよびＢａＯよりなる群から選ばれる少なくとも１種であり、
Ｃ群酸化物が、Ｓｃ ₂ Ｏ ₃ 、Ｙ ₂ Ｏ ₃ 、Ｌａ ₂ Ｏ ₃ 、ＣｅＯ ₂ 、Ｐｒ ₂ Ｏ ₃ 、Ｎｄ ₂ Ｏ ₃ 、Ｓｍ ₂ Ｏ ₃ 、Ｅｕ ₂ Ｏ ₃ 、Ｇｄ ₂ Ｏ ₃ 、Ｔｂ ₂ Ｏ ₃ 、Ｄｙ ₂ Ｏ ₃ 、Ｈｏ ₂ Ｏ ₃ 、Ｅｒ ₂ Ｏ ₃ 、Ｔｍ ₂ Ｏ ₃ 、Ｙｂ ₂ Ｏ ₃ およびＬｕ ₂ Ｏ ₃ よりなる群から選ばれる少なくとも１種であるビスマス系ガラス組成物。
【請求項３】Ａ群酸化物を４重量％以下含む請求項１記載のビスマス系ガラス組成物。
【請求項４】Ａ群酸化物が、２重量％以下のＬｉ₂Ｏ、３重量％以下のＮａ₂Ｏおよび４重量％以下のＫ₂Ｏからなる請求項３記載のビスマス系ガラス組成物。
【請求項５】Ｂ群酸化物を１０重量％以下含む請求項１、３および４のいずれか１項に記載のビスマス系ガラス組成物。
【請求項６】Ｂ群酸化物が、５重量％以下のＭｇＯ、６重量％以下のＣａＯ、８重量％以下のＳｒＯおよび１０重量％以下のＢａＯからなる請求項５記載のビスマス系ガラス組成物。
【請求項７】Ｃ群酸化物を０．１〜５重量％含む請求項１〜６のいずれか１項に記載のビスマス系ガラス組成物。
【請求項８】Ａｌ₂Ｏ₃を０．１〜２重量％含む請求項２または３記載のビスマス系ガラス組成物。
【請求項９】Ｂ群酸化物を８重量％以下含む請求項３または８記載のビスマス系ガラス組成物。
【請求項１０】Ｂ群酸化物が、２重量％以下のＭｇＯ、０．１〜４．５重量％のＣａＯ、０．１〜４．５重量％のＳｒＯおよび４重量％以下のＢａＯからなる請求項９記載のビスマス系ガラス組成物。
【請求項１１】ＺｎＯのＢ₂Ｏ₃に対する重量比が０．８〜２．８である請求項１および３〜７のいずれか１項に記載のビスマス系ガラス組成物。
【請求項１２】Ａｌ₂Ｏ₃のＳｉＯ₂に対する重量比が０．５以下である請求項１〜１１のいずれか１項に記載のビスマス系ガラス組成物。
【請求項１３】ＺｎＯのＢ₂Ｏ₃に対する重量比が１．１〜２．５である請求項２〜３、８〜１０および１２のいずれか１項に記載のビスマス系ガラス組成物。
【請求項１４】請求項１、３〜７および１１〜１２のいずれか１項に記載のビスマス系ガラス組成物からなる磁気ヘッド用封着部材。
【請求項１５】請求項２、８〜１０および１２〜１３記載のビスマス系ガラス組成物からなるプラズマディスプレイパネル用封着部材。
【請求項１６】さらに、前記ビスマス系ガラス組成物に対し、低膨張セラミックスフィラーを重量比で０．０１〜４含む請求項１５記載のプラズマディスプレイパネル用封着部材。
【請求項１７】前記低膨張セラミックスフィラーは、コーディエライト、ウィレマイト、フォルステライト、アノーサイト、ジルコン、ムライト、β−ユークリプタイト、β−スポジュメン、クリストバライト、チタン酸バリウム、酸化チタン、酸化スズ、酸化アルミニウム、酸化ジルコニウムおよび石英ガラスよりなる群から選ばれる少なくとも１種である請求項１６記載のプラズマディスプレイパネル用封着部材。
【請求項１８】少なくとも一方に巻線溝を設けた一対の磁気コア半体、前記一対の磁気コア半体の磁気ギャップ対向面間に介在する磁気ギャップ材および前記一対の磁気コア半体を接合する請求項１４記載の封着部材からなる磁気ヘッド。
【請求項１９】少なくとも一方の前記磁気ギャップ対向面に金属磁性膜を有する請求項１８記載の磁気ヘッド。
【請求項２０】前記一対の磁気コア半体は、それぞれが一対の非磁性基板および前記非磁性基板により挟持される金属磁性膜からなる請求項１８記載の磁気ヘッド。
【請求項２１】請求項１８〜２０のいずれか１項に記載の磁気ヘッドを備えた、磁気情報記録媒体に対して記録・再生を行う磁気記録再生装置。
【請求項２２】対向する前面板および背面板、前記前面板と背面板との間に配設されている表示電極およびアドレス電極、前記アドレス電極を隔離する隔壁、前記表示電極およびアドレス電極それぞれの表面を被覆する誘電体層、ならびに前記前面板および背面板それぞれの周縁部間を接合する請求項１５〜１７のいずれか１項に記載の封着部材からなるプラズマディスプレイパネル。
【請求項２３】前記前面板または背面板には通気孔が設けられており、前記通気孔と連通するガラス管および前記通気孔の開口縁部と前記ガラス管の末端とを接合するさらなる前記封着部材を有する請求項２２記載のプラズマディスプレイパネル。 [Claims]
    1. A bismuth-based glass composition,
  SiO_TwoTo1.7~ 12% By weight, B_TwoO_Three3 to9Wt%, ZnO9.5~19Wt%, Bi_TwoO_ThreeTo62~80% by weight, and Al_TwoO_ThreeTo0.1 ~4 weight% IncludedSee
  Further, it contains 5% by weight or less of Group A oxide, 12% by weight or less of Group B oxide, and 0.1 to 10% by weight of Group C oxide,
  Group A oxide is Li_TwoO, Na_TwoO and K_TwoAt least one member selected from the group consisting of O,
  Group B oxide is at least one selected from the group consisting of MgO, CaO, SrO, and BaO;
  Group C oxide is Sc_TwoO_Three, Y_TwoO_Three, La_TwoO_Three, CeO_Two, Pr_TwoO_Three, Nd_TwoO_Three, Sm_TwoO_Three, Eu_TwoO_Three, Gd_TwoO_Three, Tb_TwoO_Three, Dy_TwoO_Three, Ho_TwoO_Three, Er_TwoO_Three, Tm_TwoO_Three, Yb_TwoO_ThreeAnd Lu_TwoO_ThreeA bismuth-based glass composition which is at least one member selected from the group consisting of:
    Claims2] A bismuth-based glass composition,
  SiO_TwoFrom 1.1 to 4.5% by weight, B_TwoO_Three4-9% by weight, ZnO 9.5-18% by weight, and Bi_TwoO_ThreeContaining 72 to 85% by weightSee
  Further, the composition contains 4% by weight or less of Group A oxide, 8% by weight or less of Group B oxide, and 5% by weight or less of Group C oxide,
  Group A oxide is Li _Two O, Na _Two O and K _Two At least one member selected from the group consisting of O,
  Group B oxide is at least one selected from the group consisting of MgO, CaO, SrO, and BaO;
  Group C oxide is Sc _Two O _Three , Y _Two O _Three , La _Two O _Three , CeO _Two , Pr _Two O _Three , Nd _Two O _Three , Sm _Two O _Three , Eu _Two O _Three , Gd _Two O _Three , Tb _Two O _Three , Dy _Two O _Three , Ho _Two O _Three , Er _Two O _Three , Tm _Two O _Three , Yb _Two O _Three And Lu _Two O _Three A bismuth-based glass composition which is at least one member selected from the group consisting of:
    Claims310. The method according to claim 1, wherein the content of the group A oxide is 4% by weight or less.1 noteBismuth glass composition described above.
    Claims4A group A oxide containing less than 2% by weight of Li_TwoO, 3% by weight or less of Na_TwoO and K up to 4% by weight_TwoClaim consisting of O3The bismuth-based glass composition according to the above.
    Claims510. The method according to claim 1, which contains 10% by weight or less of a group B oxide.,3 and4The bismuth-based glass composition according to any one of the above.
    Claims6The oxide of Group B comprises up to 5% by weight of MgO, up to 6% by weight of CaO, up to 8% by weight of SrO and up to 10% by weight of BaO.5The bismuth-based glass composition according to the above.
    Claims710. The composition according to claim 1, comprising 0.1 to 5% by weight of a group C oxide.6Any of1 item2. The bismuth-based glass composition according to item 1.
    Claims8] Al_TwoO_ThreeIs 0.1 to 2% by weight.2Or3The bismuth-based glass composition according to the above.
    Claims910. The method according to claim 1, wherein the oxide of group B is not more than 8% by weight.3Or8The bismuth-based glass composition according to the above.
    Claims10The oxide of Group B comprises up to 2% by weight of MgO, from 0.1 to 4.5% by weight of CaO, from 0.1 to 4.5% by weight of SrO and up to 4% by weight of BaO.9The bismuth-based glass composition according to the above.
    Claim 11] ZnO B_TwoO_ThreeThe weight ratio is 0.8 to 2.8.OneAnd3~7The bismuth-based glass composition according to any one of the above.
    Claim 12] Al_TwoO_ThreeSiO_TwoThe weight ratio to the weight is 0.5 or less.1Any of1 item2. The bismuth-based glass composition according to item 1.
    Claim 13] ZnO B_TwoO_ThreeThe weight ratio is 1.1 to 2.5.2~3,8~10 and12The bismuth-based glass composition according to any one of the above.
    Claim 14Claim 1,3~7 and 11~ 12A sealing member for a magnetic head, comprising the bismuth-based glass composition according to any one of the above.
    Claim 15Claim 2, 8~10And 12~ 13A sealing member for a plasma display panel comprising the bismuth-based glass composition as described above.
    Claim 1610. The bismuth-based glass composition further comprising a low expansion ceramic filler in a weight ratio of 0.01 to 4.5The sealing member for a plasma display panel according to the above.
    Claim 17The low-expansion ceramic filler includes cordierite, willemite, forsterite, anorthite, zircon, mullite, β-eucryptite, β-spodumene, cristobalite, barium titanate, titanium oxide, tin oxide, aluminum oxide, oxide 2. The at least one member selected from the group consisting of zirconium and quartz glass.6The sealing member for a plasma display panel according to the above.
    Claims1810. A pair of magnetic core halves each having a winding groove provided on at least one of them, a magnetic gap material interposed between magnetic gap opposing surfaces of the pair of magnetic core halves, and the pair of magnetic core halves.4A magnetic head comprising the sealing member described above.
    Claims1910. A metal magnetic film on at least one of the surfaces facing the magnetic gap.18The magnetic head as described.
    Claims2010. A pair of magnetic core halves each comprising a pair of non-magnetic substrates and a metal magnetic film sandwiched between said non-magnetic substrates.18The magnetic head as described.
    Claim 21Claims18~20Any of1 itemA magnetic recording / reproducing apparatus, comprising: a magnetic head according to claim 1;
    Claim 22A front plate and a back plate facing each other, a display electrode and an address electrode disposed between the front plate and the back plate, a partition separating the address electrode, and a surface of each of the display electrode and the address electrode. 2. The dielectric layer and the peripheral portions of the front plate and the rear plate are joined to each other.5~ 17A plasma display panel comprising the sealing member according to any one of the above.
    Claim 23The front plate or the rear plate has a ventilation hole, and further includes a glass tube communicating with the ventilation hole, and the sealing member for joining an opening edge of the ventilation hole and an end of the glass tube. Claim 22The plasma display panel according to the above.

【００２２】
【課題を解決するための手段】
すなわち、本発明はビスマス系ガラス組成物であって、ＳｉＯ ₂ 、Ｂ₂ Ｏ ₃ 、ＺｎＯ、Ｂｉ₂ Ｏ ₃ 、およびＡｌ₂Ｏ₃を所定の重量比で含み、さらに、Ａ群酸化物を５重量％以下、Ｂ群酸化物を１２重量％以下、およびＣ群酸化物を０．１〜１０重量％含み、Ａ群酸化物が、Ｌｉ₂Ｏ、Ｎａ₂ＯおよびＫ₂Ｏよりなる群から選ばれる少なくとも１種であり、Ｂ群酸化物が、ＭｇＯ、ＣａＯ、ＳｒＯおよびＢａＯよりなる群から選ばれる少なくとも１種であり、Ｃ群酸化物が、Ｓｃ₂Ｏ₃、Ｙ₂Ｏ₃、Ｌａ₂Ｏ₃、ＣｅＯ₂、Ｐｒ₂Ｏ₃、Ｎｄ₂Ｏ₃、Ｓｍ₂Ｏ₃、Ｅｕ₂Ｏ₃、Ｇｄ₂Ｏ₃、Ｔｂ₂Ｏ₃、Ｄｙ₂Ｏ₃、Ｈｏ₂Ｏ₃、Ｅｒ₂Ｏ₃、Ｔｍ₂Ｏ₃、Ｙｂ₂Ｏ₃およびＬｕ₂Ｏ₃よりなる群から選ばれる少なくとも１種であるビスマス系ガラス組成物を提供する。 [0022]
[Means for Solving the Problems]
That is, the present invention is a bismuth-based glass composition comprises _{_{_{Si O 2, B 2 O 3}}} , Zn O, Bi 2 O 3, and Al ₂ O ₃ at a predetermined weight ratio, further, A group oxide 5 wt% or less, the group B oxide 12 wt% or less, and comprises a group C oxide 0.1 to 10 wt%, a group oxides, consisting of Li ₂ O, Na ₂ O and K ₂ O The group B oxide is at least one selected from the group consisting of MgO, CaO, SrO and BaO, and the group C oxide is Sc ₂ O ₃ , Y ₂ O ₃ _{_{_{, La 2 O 3, CeO 2}}} , Pr 2 O 3, Nd 2 O 3, Sm 2 O 3, Eu 2 O 3, Gd 2 O 3, Tb 2 O 3, Dy 2 O 3, Ho 2 O 3, Er _{_{_{_{2 O 3, Tm 2 O 3}}}} , is at least one selected from Yb ₂ O ₃ and the group consisting of Lu ₂ O ₃ Bisma Provides a system glass composition.

このようなガラス組成物を磁気ヘッド用封着部材に用いる場合には、前記ガラス組成物に、ＳｉＯ₂を１．７〜１２重量％、Ｂ₂Ｏ₃を３〜９重量％、ＺｎＯを９．５〜１９重量％、Ｂｉ₂Ｏ₃を６２〜８０重量％、およびＡｌ₂Ｏ₃を０．１〜４重量％含ませる。 When using such a glass composition the sealing member for the magnetic head, the glass composition, the SiO ₂ 1.7 to 12 wt%, the B ₂ O ₃ 3 to 9% by weight, the ZnO 9 .5～19 wt%, the Bi ₂ O ₃ 62-80 wt%, and Al ₂ O ₃ Ru contained 0.1-4 wt%.

一方、上記のようなガラス組成物をＰＤＰ用封着部材に用いる場合には、前記ガラス組成物に、ＳｉＯ₂を１．１〜４．５重量％、Ｂ₂Ｏ₃を４〜９重量％、ＺｎＯを９．５〜１８重量％、およびＢｉ₂Ｏ₃を７２〜８５重量％含ませる。また、ＰＤＰ用封着部材に使用するガラス組成物には、Ａｌ₂Ｏ₃を０．１〜２重量％含ませることが好ましい。また、ＰＤＰ用封着部材に用いるガラス組成物には、Ｂ群酸化物を８重量％以下含ませることが好ましく、特に、Ｂ群酸化物が２重量％以下のＭｇＯ、０．１〜４．５重量％のＣａＯ、０．１〜４．５重量％のＳｒＯおよび４重量％以下のＢａＯからなることが好ましい。 On the other hand, when the above glass composition is used for a sealing member for PDP, the glass composition contains 1.1 to 4.5% by weight of SiO ₂ and 4 to 9% by weight of B ₂ O _3. the ZnO 9.5 to 18 wt%, and Bi ₂ O ₃ Ru moistened with 72 to 85 wt%. Further, it is preferable that the glass composition used for the sealing member for PDP contains 0.1 to ₂ % by weight of Al ₂ O ₃ . Further, it is preferable that the glass composition used for the sealing member for PDP contains 8% by weight or less of a group B oxide, and in particular, MgO containing 2% by weight or less of a group B oxide; It preferably comprises 5% by weight of CaO, 0.1 to 4.5% by weight of SrO and 4% by weight or less of BaO.

【００３３】
【発明の実施の形態】
本発明のビスマス系ガラス組成物は、ＳｉＯ ₂ 、Ｂ₂ Ｏ ₃ 、ＺｎＯ、Ｂｉ₂ Ｏ ₃ 、およびＡｌ₂ Ｏ ₃ を所定の重量比で含む。本発明の一形態において、Ａｌ₂Ｏ₃の含有量は０％でもよい。 [0033]
BEST MODE FOR CARRYING OUT THE INVENTION
Bismuth glass composition of the present invention comprise _{_{_{Si O 2, B 2 O 3}}} , Zn O, Bi 2 O 3, and Al ₂ O ₃ at a predetermined weight ratio. In one embodiment of the present invention, the content of Al ₂ O ₃ may be 0%.

本発明の一形態において、ガラス組成物は、ＳｉＯ₂を１．７〜１２重量％、Ｂ₂Ｏ₃を３〜９重量％、ＺｎＯを９．５〜１９重量％、Ｂｉ₂Ｏ₃を６２〜８０重量％、およびＡｌ₂Ｏ₃を０．１〜４重量％含む。このガラス組成物は、磁気ヘッド用封着部材に適している。 In one form of the present invention, the glass composition, the SiO ₂ 1.7 to 12 wt%, the B ₂ O ₃ 3 to 9% by weight, the ZnO 9.5 to 19 wt%, the Bi ₂ O ₃ 62 80 wt%, and the Al ₂ O ₃ 0.1 to 4% by weight. This glass composition is suitable for a sealing member for a magnetic head.

また、本発明の別の一形態において、ガラス組成物は、ＳｉＯ₂を１．１〜４．５重量％、Ｂ₂Ｏ₃を４〜９重量％、ＺｎＯを９．５〜１８重量％、およびＢｉ₂Ｏ₃を７２〜８５重量％含む。このガラス組成物は、ＰＤＰ用封着部材に適している。また、ＰＤＰ用封着部材に用いるガラス組成物は、Ａｌ₂Ｏ₃を０．１〜２重量％含むことが好ましい。また、Ｂ群酸化物の含有量は、８重量％以下であることが好ましく、特に、Ｂ群酸化物は２重量％以下のＭｇＯ、０．１〜４．５重量％のＣａＯ、０．１〜４．５重量％のＳｒＯおよび４重量％以下のＢａＯからなることが好ましい。この場合、ＭｇＯおよびＢａＯから選ばれる１種もしくは２種の含有量は、０％であってもよい。なお、ＭｇＯの含有量が２重量％を超えると、ガラス組成物の気密性が維持できなくなる傾向がある。ＣａＯの含有量が４．５重量％を超え、ＳｒＯの含有量が４．５重量％を超えると、耐水性が低下する傾向がある。また、ＢａＯの含有量が４重量％を超えると、ガラス組成物の気密性が維持できなくなる傾向がある。 Further, in another form of the present invention, the glass composition, the SiO ₂ from 1.1 to 4.5 wt%, B ₂ O ₃ 4-9% by weight, the ZnO 9.5-18 wt%, and a Bi ₂ O ₃ 72~85% by weight. This glass composition is suitable for a sealing member for PDP. Further, the glass composition used for the sealing member for PDP preferably contains 0.1 to ₂ % by weight of Al ₂ O ₃ . Further, the content of the group B oxide is preferably 8% by weight or less, and in particular, the group B oxide is 2% by weight or less of MgO, 0.1 to 4.5% by weight of CaO, 0.1% by weight. Preferably, it consists of ~ 4.5 wt% SrO and up to 4 wt% BaO. In this case, the content of one or two selected from MgO and BaO may be 0%. If the content of MgO exceeds 2% by weight, the airtightness of the glass composition tends to be unable to be maintained. When the content of CaO exceeds 4.5% by weight and the content of SrO exceeds 4.5% by weight, water resistance tends to decrease. On the other hand, when the content of BaO exceeds 4% by weight, the airtightness of the glass composition tends to be unable to be maintained.