JP6456458B2 - ガラス質の又は少なくとも部分的に結晶化した融着材料、接合結合部、遮断層及びこの融着材料を含む層系及びこの部材への組み込み - Google Patents
ガラス質の又は少なくとも部分的に結晶化した融着材料、接合結合部、遮断層及びこの融着材料を含む層系及びこの部材への組み込み Download PDFInfo
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- JP6456458B2 JP6456458B2 JP2017217461A JP2017217461A JP6456458B2 JP 6456458 B2 JP6456458 B2 JP 6456458B2 JP 2017217461 A JP2017217461 A JP 2017217461A JP 2017217461 A JP2017217461 A JP 2017217461A JP 6456458 B2 JP6456458 B2 JP 6456458B2
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
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Description
SiO2 25〜45
B2O3 5〜<20
Al2O3 0〜5
CaO 4〜30
MgO >30〜40
CeO2 0〜10
La2O3 0〜10
Y2O3 0〜10
TiO2 0〜10
ZrO2 0〜10
SnO2 0〜10
HfO2 0〜10
R2O3 0〜10
(酸化物を基礎としてmol%で示す)を含み、ここで、R2O3は、Ga2O3及び/又はIn2O3及び/又は及び/又はDy2O3及び/又はYb2O3の群から選択される、単独の又は各々の任意の組み合わせの酸化物である。
好ましい実施態様は、従属請求項から明らかとなる。
(1) 2Cr2O3(s)+4BaO+3O2 → 4BaCrO4(s)
(2) CrO2(OH2)2(g)+BaO(s) → BaCrO4(s)+H2O(g)
反応(1)は、界面での拡散によって行われ、反応(2)ではガス状の酸化クロムがBaOと反応する。
CTE(300℃)は、α(20-300)、20℃〜300℃の線形膨張係数に相当する
CTE(750℃)は、α(20-750)、20℃〜750℃の線形膨張係数に相当する
ΔCTE(300℃)は、非晶質の状態のCTE(300℃)と、少なくとも部分的に結晶化した状態のCTE(300℃)との差
Tgは、転移温度
Tx,onsetは、結晶化開始温度
Tx,peakは、ピーク結晶化温度
Start sinteringは、焼結開始
Softening tempは、軟化温度
Spherical tempは、球状化温度
Half sphere tempは、半球化温度
Flowing tempは、流動温度
Dilat. Softeningは、膨張計による軟化温度
これらの実施例の製造のために、まず出発材料をガラス融液の形に溶融させる。次に、このガラス融液から粉砕プロセスによって一般に粉末状のガラス質の融着材料を製造した。これらの実施例の場合には、溶融した融着材料から、約10μmのD(50)及び<63μmのD(99)を示す粒度分布を示す粉末が準備された。
Claims (14)
- 不可避な不純物を除いてBaO及びSrO不含の、ガラス質の又は少なくとも部分的に結晶化した融着材料1であって、
SiO2 25〜45
B2O3 8〜<20
Al2O3 0〜5
CaO 4〜30
MgO >30〜40
CeO2 0〜10
La2O3 0〜10
Y2O3 0〜10
TiO2 0〜10
ZrO2 0〜10
SnO2 0〜10
HfO2 0〜10
R2O3 0〜10
(酸化物を基礎としてmol%で示す)を含み、ここで、R2O3は、Ga2O3及び/又はIn2O3及び/又はDy2O3及び/又はYb2O3の群から選択される、単独の又は各々の任意の組み合わせの酸化物である、融着材料1。 - 少なくとも部分的に結晶化した状態で、α(20-700)≧10.0・10-6K-1の熱膨張係数を示す、請求項1に記載の融着材料1。
- SiO2 25〜45
B2O3 8〜18
Al2O3 0〜5
CaO >15〜30
MgO >30〜40
CeO2 0〜10
La2O3 0〜10
Y2O3 0〜10
TiO2 0〜10
ZrO2 0〜10
SnO2 0〜10
HfO2 0〜10
R2O3 0〜10
(酸化物を基礎としてmol%で示す)を含む、請求項1又は2に記載の融着材料1。 - SiO2 25〜<35
B2O3 8〜<20
Al2O3 0〜5
CaO 4〜<15
MgO >30〜40
CeO2 0〜10
La2O3 0〜10
Y2O3 0〜10
TiO2 0〜10
ZrO2 0〜10
SnO2 0〜10
HfO2 0〜10
R2O3 0〜10
(酸化物を基礎としてmol%で示す)を含む、請求項1又は2に記載の融着材料1。 - 単独で又はそれぞれの組み合わせで、
Al2O3 0〜<2.1
ZnO 0〜<5
Y2O3 >0〜10
(酸化物を基礎としてmol%で示す)が当てはまる、請求項1から4までのいずれか1項に記載の融着材料1。 - 結晶相は少なくとも部分的に結晶化した状態で、CaSiO3(ウォラストナイト)及び/又はMgSiO3(エンスタタイト)及び/又はMgSiO4(フォルステライト)及び/又はCaMgSiO4(モンチセライト)及び/又はCaMgSi2O6(ダイオプサイド)及び/又はCa2MgSi2O7(オケルマナイト)を含む及び/又はこれらから形成される、請求項1から5までのいずれか1項に記載の融着材料1。
- 無機充填物、特にAl2O3及び/又は安定化ZrO2及び/又はMgO及び/又はMgSiO3(エンスタタイト)及び/又はMg2SiO4(フォルステライト)及び/又はCaMgSiO4(モンチセライト)及び/又はCaMgSi2O6(ダイオプサイド)及び/又はCa2MgSi2O7(オケルマナイト)の群から選択された無機充填物を、付加的に30質量%まで含む、請求項1から6までのいずれか1項に記載の融着材料1。
- 金属2、特にクロム含有鋼及び/又はクロム含有合金、又はセラミック3、特にAl2O3及び/又は安定化酸化ジルコニウムからなる部材上の、遮断層1であって、ここで、前記安定化は、好ましくはY2O3、Sc2O3、CaO、MgO及び/又はCeO2からなる群から選択される1種以上の酸化物によって行われ、前記遮断層1は、請求項1から7までのいずれか1項に記載の融着材料1を含む、遮断層1。
- − 少なくとも2つの金属部材、特にクロム含有鋼及び/又はクロム合金及び/又はニッケル合金からなる少なくとも2つの金属部材を含み、ここで、前記少なくとも2つの金属部材は、請求項1から7までのいずれか1項に記載の融着材料1によって結合されているか、又は
− 少なくとも2つのセラミック部材、特にAl2O3及び/又は安定化酸化ジルコニウムからなる少なくとも2つのセラミック部材を含み、ここで前記安定化は、好ましくはY2O3、Sc2O3、CaO、MgO及び/又はCeO2からなる群から選択される1種以上の酸化物によって行われ、ここで、前記少なくとも2つのセラミック部材は、請求項1から7までのいずれか1項に記載の融着材料1によって結合されているか、又は
− 少なくとも1つの金属部材と少なくとも1つのセラミック部材、特にそれぞれ上述の材料からなる少なくとも1つの金属部材と少なくとも1つのセラミック部材を含み、ここで前記少なくとも1つの金属部材と少なくとも1つのセラミック部材とは、請求項1から7までのいずれか1項に記載の融着材料1によって結合されている、
接合結合部。 - 金属2及び/又はセラミック3からなる少なくとも1つのエレメントを含み、ここで前記金属は、特にクロム含有鋼及び/又はクロム含有合金及び/又はニッケル含有合金を含み、及び/又は前記セラミックは、特にAl2O3を基礎とするセラミック及び/又は安定化酸化ジルコニウムを含み、前記エレメント上に、請求項1から7までのいずれか1項に記載の融着材料1が少なくとも部分的に被着されていて、かつ前記融着材料1上に少なくとも部分的に被着されている、ガラスを基礎とする少なくとも1つの別の融着材料4,10を含む、層系。
- − 金属2及び/又はセラミック3、特に請求項10に記載の材料を含む金属2及び/又はセラミック3からなるエレメント、それに続いて、請求項1から7までのいずれか1項に記載の融着材料、それに続いて、
− ガラスを基礎とする別の融着材料4,10、それに続いて、請求項1から7までのいずれか1項に記載の融着材料、それに続いて、
− 金属2及び/又はセラミック3、特に請求項10に記載の材料を含む金属2及び/又はセラミック3からなるエレメント
の層順序を有する、請求項10に記載の層系。 - 請求項1から7までのいずれか1項に記載の融着材料1、又は請求項8に記載の遮断層1、又は請求項9に記載の接合結合部、又は請求項10及び/又は11に記載の層系を含む、燃料電池又は電解質セル。
- ブッシング開口部を有する金属又はセラミックの支持エレメント50と、機能エレメント51とを含むブッシングエレメントであって、
前記機能エレメント51は、請求項1から7までのいずれか1項に記載の融着材料1によって前記ブッシング開口部内に保持されるか、又は
前記ブッシング開口部内に及び/又は前記機能エレメント51に、請求項8に記載の遮断層1が存在し、前記遮断層1が、ガラスを基礎とする少なくとも1つの別の融着材料10を、前記支持エレメント50及び/又は前記機能エレメント51の材料から隔てる、
ブッシングエレメント。 - 燃料電池又は電解質セル又はセンサ及び/又はアクチュエータの製造のため、又は焼結体及び/又は焼結シートの製造のため、又は他のガラス及び/又はガラスセラミック中の混和材料としての、請求項1から7までのいずれか1項に記載の融着材料1の使用。
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