JP6858555B2 - 3d印刷プロセスを使用することによって混成セラミック/金属、セラミック/セラミック体を製造するための方法 - Google Patents
3d印刷プロセスを使用することによって混成セラミック/金属、セラミック/セラミック体を製造するための方法 Download PDFInfo
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- JP6858555B2 JP6858555B2 JP2016254565A JP2016254565A JP6858555B2 JP 6858555 B2 JP6858555 B2 JP 6858555B2 JP 2016254565 A JP2016254565 A JP 2016254565A JP 2016254565 A JP2016254565 A JP 2016254565A JP 6858555 B2 JP6858555 B2 JP 6858555B2
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Description
第1の材料は、無機材料である。
空洞は、ダイを好ましくは三次元印刷によって付加製造することによって生み出される。
ダイは、熱硬化性又は熱可塑性ポリマーから作られる。
空洞内の1以上の突出部は、中空又は中実な突出部である。
1以上の突出部は、中空である。
1以上の突出部は、非直線な形状である。
ダイは、第1の材料を硬化させる際に除去されることで、1以上の突出部がかつて存在した1以上の空隙を残す。
ダイは、300〜600℃の範囲における加熱によって除去される。
1以上の空隙へと1以上の別の材料を加えることをさらに含む。
1以上の別の材料は、固体又は液体材料である。
1以上の別の材料は、セラミック又は金属である。
金属は、アルミナ又は石英の棒である。
1以上の別の材料を加える前に結合剤を取り入れることをさらに含む。
結合剤は、1以上の空隙、1以上の別の材料、又は両方に適用される。
1以上の別の材料を焼結し、或いは硬化させることをさらに含む。
焼結又は硬化は、1000〜1600℃の範囲の温度、好ましくは1600℃で行われる。
第1のフェーズ:本発明の方法に従ってセラミック構造物を製造するために、フォトポリマープリンタ(例えば、3D systemsのVisiJet)が、外側表面及び内部の中空空洞を形成する構造を有しているプラスチックダイを製造するために使用される。内部の中空空洞は、0.016インチの内径及び長さ0.5インチ〜1インチの奥行きを有する構造を印刷することによって製造される。プラスチックダイは、付加印刷プロセスによって0.045インチの直径を有するチップキャップ(tipcap)ピンを使用して製造される。シロキサン、シリカ、ジルコン、アルミナ、イットリア、などのセラミック材料のスラリが、内部の中空空洞の周囲にスラリが形成されるように外側表面を呈しているプラスチックダイの一部分へと注入される。約1600℃の温度における1回以上の焼結の工程の後に、未硬化体は硬化し、プラスチックダイは除去され、或いは燃え尽き、約0.016インチの直径及び0.5インチ〜1インチの奥行きを有する内部の中空空洞が残される。
プラスチックダイが、実施例1において述べた手順に従って印刷される。プラスチックダイは、外側表面並びに0.013インチの外径及び0.5インチの奥行きを有する内部空洞の両方を備えるように設計される。上述のように、セラミックスラリが、プラスチックダイの外側部分へと注入される。今やダイの外側部分の内側に位置するセラミック部分が、セラミックマトリクスを硬化させるとともに、プラスチックダイを燃やし尽くすために、500℃の温度へと加熱される。セラミック主体のスラリに被覆された約0.011インチの直径及び0.5インチの長さを有するアルミナ棒が、内部の中空空洞によって生み出された内部空洞へと挿入される。セラミックとアルミナ棒との組合せが、セラミックマトリクス及びアルミナ棒の焼結のために、約1600℃の温度で加熱され、焼結によってマトリクスと棒との界面における結合が生み出される。得られた製品は、補強されたセラミック体である。
100 内側部分、内部形状、中空空洞、突出部、内部シェル、チャネル、内部形状部分
200 内側部分、内部形状、中空空洞、突出部、内部シェル、チャネル、内部形状部分
300 外側部分、外部形状、空洞、外部シェル、外側三次元体、外部形状部分
Claims (10)
- 複合構造物を形成する方法であって、
空洞を有しており、該空洞が該空洞の内部の1以上の突出部を含んでいるダイへと、第1の材料を加えることと、
前記第1の材料を硬化させ、三次元体を形成することと、
を含み、
前記ダイは、前記第1の材料を硬化させる際に除去されることで、1以上の前記突出部がかつて存在した1以上の空隙を残し、
セラミック又は金属である1以上の別の材料を、1以上の前記空隙へと加えることをさらに含む、方法。 - 前記第1の材料は、注入によって加えられる、請求項1に記載の方法。
- 前記空洞は、熱硬化性又は熱可塑性ポリマーから作られる前記ダイを付加製造することによって生み出される、請求項1又は2に記載の方法。
- 前記空洞の内部の1以上の前記突出部は、中空又は中実な突出部である、請求項1乃至3のいずれか1項に記載の方法。
- 前記ダイは、300〜600℃で前記第1の材料を硬化させる際に除去される、請求項1乃至4のいずれか1項に記載の方法。
- 注入によって加えられる、セラミックである1以上の別の材料を、1以上の前記空隙へと加えることをさらに含む、請求項1乃至5のいずれか1項に記載の方法。
- 1以上の前記別の材料は、アルミナ又は石英の棒である、請求項1乃至5のいずれか1項に記載の方法。
- 1以上の前記別の材料を加える前に結合剤を取り入れることをさらに含む、請求項1乃至7のいずれか1項に記載の方法。
- 1以上の前記別の材料を、1000〜1600℃の範囲の温度で、焼結し、或いは硬化させることをさらに含む、請求項1乃至8のいずれか1項に記載の方法。
- 金型の原型に対応する外側の特徴と、100:1〜5:1の範囲のアスペクト比を有する1以上の非直線な内部空洞とを備えているセラミック体と、
前記内部空洞に位置しており、金属インサート又はセラミック体と異なる材料である少なくとも1つの第2の材料と、
を含み、
前記第2の材料の前記セラミック体への焼結で生じた、前記セラミック体と前記第2の材料との結合により、前記第2の材料で前記セラミック体が補強された、セラミック複合材料。
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US14/991,413 | 2016-01-08 | ||
US14/991,413 US10697305B2 (en) | 2016-01-08 | 2016-01-08 | Method for making hybrid ceramic/metal, ceramic/ceramic body by using 3D printing process |
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US10646959B2 (en) * | 2017-08-18 | 2020-05-12 | General Electric Company | Additive manufactured components including sacrifical caps and methods of forming same |
US10299392B2 (en) | 2017-10-12 | 2019-05-21 | Goodrich Corporation | Integrally bonded and installed protective enclosure |
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EP3584803A1 (en) * | 2018-06-20 | 2019-12-25 | Siemens Healthcare GmbH | Method for producing a grid-like beam collimator, grid-like beam collimator, radiation detector and medical imaging device |
US11167375B2 (en) | 2018-08-10 | 2021-11-09 | The Research Foundation For The State University Of New York | Additive manufacturing processes and additively manufactured products |
WO2020129049A1 (en) * | 2018-12-16 | 2020-06-25 | Tritone Technologies Ltd. | Supports for components during debinding and sintering |
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