Development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (LTCC) using sacrificial carbon by process modelling and simulation
The most promising method to realise the necessary embedded structure in Low Temperature Co-fired Ceramics (LTCC) is by employing carbon sacrificial material. Process characterisation with respect to carbon burn-off, particularly under embedded condition for dimensional accuracy, is hitherto yet to...
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sg-ntu-dr.10356-550572023-03-11T17:52:02Z Development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (LTCC) using sacrificial carbon by process modelling and simulation Tan, Yeow Meng Lam Yee Cheong School of Mechanical and Aerospace Engineering DRNTU::Engineering::Manufacturing The most promising method to realise the necessary embedded structure in Low Temperature Co-fired Ceramics (LTCC) is by employing carbon sacrificial material. Process characterisation with respect to carbon burn-off, particularly under embedded condition for dimensional accuracy, is hitherto yet to be established. In this investigation, physical phenomena were identified for carbon burn-off for embedded structure fabrication. A chemical reactions mass transport model with LTCC sintering pore evolution was developed for process characterisation. Competing kinetics were observed and analysed for various firing profiles, including those with incomplete carbon burn-off. The process model was employed in a practical application for distortion minimisation for a large embedded air cavity. The minimised cavity deformation through process optimization is a significant achievement. The process model has the potential to greatly reduce the time required for experimental trials, with improvement of product quality in terms of dimensional and shape consistency and tolerance. DOCTOR OF PHILOSOPHY (MAE) 2013-12-11T06:37:51Z 2013-12-11T06:37:51Z 2013 2013 Thesis Tan, Y. M. (2013). Development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (LTCC) using sacrificial carbon by process modelling and simulation. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/55057 10.32657/10356/55057 en 229 p. application/pdf |
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DRNTU::Engineering::Manufacturing Tan, Yeow Meng Development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (LTCC) using sacrificial carbon by process modelling and simulation |
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The most promising method to realise the necessary embedded structure in Low Temperature Co-fired Ceramics (LTCC) is by employing carbon sacrificial material. Process characterisation with respect to carbon burn-off, particularly under embedded condition for dimensional accuracy, is hitherto yet to be established. In this investigation, physical phenomena were identified for carbon burn-off for embedded structure fabrication. A chemical reactions mass transport model with LTCC sintering pore evolution was developed for process characterisation. Competing kinetics were observed and analysed for various firing profiles, including those with incomplete carbon burn-off. The process model was employed in a practical application for distortion minimisation for a large embedded air cavity. The minimised cavity deformation through process optimization is a significant achievement. The process model has the potential to greatly reduce the time required for experimental trials, with improvement of product quality in terms of dimensional and shape consistency and tolerance. |
author2 |
Lam Yee Cheong |
author_facet |
Lam Yee Cheong Tan, Yeow Meng |
format |
Theses and Dissertations |
author |
Tan, Yeow Meng |
author_sort |
Tan, Yeow Meng |
title |
Development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (LTCC) using sacrificial carbon by process modelling and simulation |
title_short |
Development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (LTCC) using sacrificial carbon by process modelling and simulation |
title_full |
Development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (LTCC) using sacrificial carbon by process modelling and simulation |
title_fullStr |
Development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (LTCC) using sacrificial carbon by process modelling and simulation |
title_full_unstemmed |
Development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (LTCC) using sacrificial carbon by process modelling and simulation |
title_sort |
development of fabrication process for embedded structure in multi-layer low temperature co-fired ceramics (ltcc) using sacrificial carbon by process modelling and simulation |
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2013 |
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https://hdl.handle.net/10356/55057 |
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1761781225141305344 |