Injection Molding of Magnesium Aluminate Spinel Nanocomposites for High-Throughput Manufacturing of Transparent Ceramics

被引：6

作者：

Mader, Markus ^{[1
,2
]}

Prediger, Richard ^{[1
]}

Schell, Karl G. ^{[3
,4
]}

Schmidt, Gabriela ^{[5
,6
]}

Dorn, Alex ^{[7
]}

Jenne, Sophie ^{[7
]}

Kluck, Sebastian ^{[1
]}

Hambitzer, Leonhard ^{[1
]}

Luitz, Manuel ^{[1
]}

Schwarz, Claudia ^{[8
,9
]}

Milich, Marcel ^{[3
]}

Greiner, Christian ^{[3
,10
]}

Rapp, Bastian E. ^{[1
,2
,11
,12
]}

Kotz-Helmer, Frederik ^{[1
,2
,11
]}

机构：

[1] Albert Ludwig Univ Freiburg, Dept Microsyst Engn IMTEK, Lab Proc Engn, NeptunLab, D-79110 Freiburg, Germany

[2] Albert Ludwig Univ Freiburg, Freiburg Mat Res Ctr FMF, D-79104 Freiburg, Germany

[3] Karlsruhe Inst Technol KIT, Inst Appl Mat IAM, D-76131 Karlsruhe, Germany

[4] IAM KWT Ceram Mat & Technol, Haid & Neu Str 7, D-76131 Karlsruhe, Germany

[5] Albert Ludwig Univ Freiburg, Inst Phys Chem, D-79104 Freiburg, Germany

[6] Albert Ludwig Univ Freiburg, Inst Macromol Chem, D-79104 Freiburg, Germany

[7] Albert Ludwig Univ Freiburg, Dept Microsyst Engn IMTEK, Gisela & Erwin Sick Chair Microopt, D-79110 Freiburg, Germany

[8] Hahn Schickard, Georges Kohler Allee 103, D-79110 Freiburg, Germany

[9] Albert Ludwig Univ Freiburg, Dept Microsyst Engn IMTEK, Electrochem Energy Syst, D-79110 Freiburg, Germany

[10] IAM ZM MicroTribol Ctr TC, Kaiserstr 5, D-76131 Karlsruhe, Germany

[11] Glassomer GmbH, Georges Kohler Allee 103, D-79110 Freiburg, Germany

[12] Albert Ludwig Univ Freiburg, FIT Freiburg Ctr Interact Mat & Bioinspired Techn, D-79110 Freiburg, Germany

来源：

ADVANCED SCIENCE | 2022年 / 9卷 / 31期

基金：

欧洲研究理事会;

关键词：

injection molding; magnesium aluminate spinel; thermoplastic nanocomposite; transparent ceramic; MGAL2O4; SPINEL; OPTICAL-PROPERTIES; TEMPERATURE; FABRICATION; DESIGN; POWDER;

D O I：

10.1002/advs.202204385

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Transparent ceramics like magnesium aluminate spinel (MAS) are considered the next step in material evolution showing unmatched mechanical, chemical and physical resistance combined with high optical transparency. Unfortunately, transparent ceramics are notoriously difficult to shape, especially on the microscale. Therefore, a thermoplastic MAS nanocomposite is developed that can be shaped by polymer injection molding at high speed and precision. The nanocomposite is converted to dense MAS by debinding, pre-sintering, and hot isostatic pressing yielding transparent ceramics with high optical transmission up to 84 % and high mechanical strength. A transparent macroscopic MAS components with wall thicknesses up to 4 mm as well as microstructured components with single micrometer resolution are shown. This work makes transparent MAS ceramics accessible to modern high-throughput polymer processing techniques for fast and cost-efficient manufacturing of macroscopic and microstructured components enabling a plethora of potential applications from optics and photonics, medicine to scratch and break-resistant transparent windows for consumer electronics.

引用

页数：10

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