JP7336440B2 - 高い硬度および弾性率を有するイオン交換可能な透明ガーナイト-スピネル・ガラスセラミックス - Google Patents
高い硬度および弾性率を有するイオン交換可能な透明ガーナイト-スピネル・ガラスセラミックス Download PDFInfo
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Description
(MgxZn1-x)Al2O4[式中、xは1未満である]を含む第1の結晶相;および
正方晶系ZrO2を含む第2の結晶相
を含み、
可視領域において透明である、
ガラスセラミックス。
Li2OおよびNa2Oの少なくとも1つをさらに含む、実施形態1記載のガラスセラミックス。
Li2OおよびNa2Oをさらに含む、実施形態1または2記載のガラスセラミックス。
xが0よりも大きい、実施形態1から3までのいずれか1つ記載のガラスセラミックス。
35モル%以上70モル%以下のSiO2をさらに含む、実施形態1から4までのいずれか1つ記載のガラスセラミックス。
35モル%~60モル%のSiO2;
13モル%よりも多くのAl2O3;
8モル%よりも多くのZnO;
0モル%~8モル%のMgO;および
0モル%よりも多く10モル%までのZrO2
をさらに含む、実施形態1から5までのいずれか1つ記載のガラスセラミックス。
0モル%~6モル%のTiO2;
0モル%~10モル%のNa2O;
0モル%~8モル%のLi2O;
0モル%~10モル%のHfO2;
0モル%~0.1モル%のAs2O5;および
0モル%~0.3モル%のSnO2
をさらに含む、実施形態6記載のガラスセラミックス。
ZrO2+TiO2+HfO2≧5モル%である、実施形態1から7までのいずれか1つ記載のガラスセラミックス。
実質的にTiO2不含である、実施形態1から8までのいずれか1つ記載のガラスセラミックス。
少なくとも10質量%の結晶化度を示す、実施形態1から9までのいずれか1つ記載のガラスセラミックス。
可視領域で少なくとも90%の透過率を有する、実施形態1から10までのいずれか1つ記載のガラスセラミックス。
実質的に無色である、実施形態1から11までのいずれか1つ記載のガラスセラミックス。
前記第1の結晶相が10nm未満の結晶子サイズを有する、実施形態1から12までのいずれか1つ記載のガラスセラミックス。
前記ガラスセラミックスの表面から圧縮深さまで延在する圧縮応力領域をさらに含む、実施形態1から13までのいずれか1つ記載のガラスセラミックス。
少なくとも9GPaの硬度を有する、実施形態1から14までのいずれか1つ記載のガラスセラミックス。
少なくとも98GPaのヤング率を有する、実施形態1から15までのいずれか1つ記載のガラスセラミックス。
前面、背面、および側面を含む筐体;
少なくとも部分的には前記筐体内にあり、少なくともコントローラ、メモリ、およびディスプレイを含む電気部品であって、前記ディスプレイが前記筐体の前記前面にあるか前記前面に隣接している、電気部品;および
前記ディスプレイ上に配置されているカバー基材
を含み、
前記筐体または前記カバー基材の少なくとも1つの少なくとも一部分は、実施形態1から16までのいずれか1つ記載のガラスセラミックスを含む、
民生用電子製品。
前駆体ガラスをセラミックス化して、可視領域で透明なガラスセラミックスを形成するステップを含む方法であって、
前記ガラスセラミックスが、
(MgxZn1-x)Al2O4[式中、xは1未満である]を含む第1の結晶相;および
正方晶系ZrO2を含む第2の結晶相
を含む、
方法。
前記セラミックス化ステップの前に、前記前駆体ガラスにおいて核を形成するステップをさらに含む、実施形態18記載の方法。
前記核を形成するステップが、前記前駆体ガラスを少なくとも700℃の温度で少なくとも1時間かけて加熱処理するステップを含む、実施形態19記載の方法。
前記セラミックス化ステップが、前記前駆体ガラスを少なくとも750℃の温度で少なくとも30分かけて加熱処理するステップを含む、実施形態18から20までのいずれか1つ記載の方法。
前記ガラスセラミックスをイオン交換処理するステップをさらに含む、実施形態18から21までのいずれか1つ記載の方法。
前記イオン交換処理するステップが、前記ガラスセラミックスを混合イオン交換浴と接触させるステップを含む、実施形態22記載の方法。
Claims (13)
- (MgxZn1-x)Al2O4[式中、xは1未満である]を含む第1の結晶相;および
正方晶系ZrO2 からなる第2の結晶相
を含むガラスセラミックスであって、
可視領域において透明であり、
前記ガラスセラミックスは、無色であり、L*>90、a* -0.2~0.2、およびb* -0.1~0.6を有し、L*、a*、およびb*がCIE系における色空間を示す、ガラスセラミックス。 - xが0よりも大きい、請求項1記載のガラスセラミックス。
- 35モル%~60モル%のSiO2;
13モル%よりも多くのAl2O3;
8モル%よりも多くのZnO;
0モル%~8モル%のMgO;および
0モル%よりも多く10モル%までのZrO2
をさらに含む、請求項1記載のガラスセラミックス。 - 0モル%~6モル%のTiO2;
0モル%~10モル%のNa2O;
0モル%~8モル%のLi2O;
0モル%~10モル%のHfO2;
0モル%~0.1モル%のAs2O5;および
0モル%~0.3モル%のSnO2
をさらに含む、請求項3記載のガラスセラミックス。 - Li2OおよびNa2Oの少なくとも1つをさらに含むこと;
ZrO2+TiO2+HfO2≧5モル%であること;および/または
実質的にTiO2不含であること
の少なくとも1つを特徴とする、請求項1から4いずれか1項記載のガラスセラミックス。 - 少なくとも10質量%の結晶化度を示すこと;
可視領域で少なくとも90%の透過率を有すること;
実質的に無色であること;および/または
前記第1の結晶相が10nm未満の結晶子サイズを有すること
の少なくとも1つが成り立つ、請求項1から4いずれか1項記載のガラスセラミックス。 - 前記ガラスセラミックスの表面から圧縮深さまで延在する圧縮応力領域をさらに含む、請求項1から4いずれか1項記載のガラスセラミックス。
- 少なくとも9GPaの硬度;および/または
少なくとも98GPaのヤング率
の少なくとも1つを有する、請求項1から4いずれか1項記載のガラスセラミックス。 - 前駆体ガラスをセラミックス化して、可視領域で透明なガラスセラミックスを形成するステップを含む方法であって、
前記ガラスセラミックスが、
(MgxZn1-x)Al2O4[式中、xは1未満である]を含む第1の結晶相;および
正方晶系ZrO2 からなる第2の結晶相
を含み、
前記ガラスセラミックスは、無色であり、L*>90、a* -0.2~0.2、およびb* -0.1~0.6を有し、L*、a*、およびb*がCIE系における色空間を示す、方法。 - 前記前駆体ガラスを少なくとも700℃の温度で少なくとも1時間かけて加熱処理することによる前記セラミックス化ステップの前に、前記前駆体ガラスにおいて核を形成するステップをさらに含む、請求項9記載の方法。
- 前記セラミックス化ステップが、前記前駆体ガラスを少なくとも750℃の温度で少なくとも30分かけて加熱処理するステップを含む、請求項9記載の方法。
- 前記セラミックス化ステップが、別個の核形成処理を含まない、請求項9または11記載の方法。
- 前記ガラスセラミックスをイオン交換処理するステップをさらに含む、請求項9から11いずれか1項記載の方法。
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US201762592844P | 2017-11-30 | 2017-11-30 | |
US62/592,844 | 2017-11-30 | ||
PCT/US2018/063207 WO2019108876A1 (en) | 2017-11-30 | 2018-11-30 | Ion exchangeable, transparent gahnite-spinel glass ceramics with high hardness and modulus |
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CN113365957B (zh) | 2018-11-30 | 2023-12-26 | 康宁股份有限公司 | 具有高硬度和模量的可离子交换的不透明锌尖晶石-尖晶石玻璃陶瓷 |
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CN111615500A (zh) | 2020-09-01 |
US11192818B2 (en) | 2021-12-07 |
US20190161397A1 (en) | 2019-05-30 |
EP3717420A1 (en) | 2020-10-07 |
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