Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9 ceramics with Ag floating electrodes by selective laser burnout
Additive manufacturing (AM) of co-fired low temperature ceramics offers a unique route for fabrication of novel 3D radio frequency (RF) and microwave communication components, embedded electronics and sensors. This paper describes the first-ever direct 3D printing of low temperature co-fired ceramic...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-04-01
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| Series: | Virtual and Physical Prototyping |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/17452759.2019.1708026 |
| _version_ | 1797678672559210496 |
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| author | Reza Gheisari Henry Chamberlain George Chi-Tangyie Shiyu Zhang Athanasios Goulas Chih-Kuo Lee Tom Whittaker Dawei Wang Annapoorani Ketharam Avishek Ghosh Bala Vaidhyanathan Will Whittow Darren Cadman Yiannis C. Vardaxoglou Ian M. Reaney Daniel S. Engstrøm |
| author_facet | Reza Gheisari Henry Chamberlain George Chi-Tangyie Shiyu Zhang Athanasios Goulas Chih-Kuo Lee Tom Whittaker Dawei Wang Annapoorani Ketharam Avishek Ghosh Bala Vaidhyanathan Will Whittow Darren Cadman Yiannis C. Vardaxoglou Ian M. Reaney Daniel S. Engstrøm |
| author_sort | Reza Gheisari |
| collection | DOAJ |
| description | Additive manufacturing (AM) of co-fired low temperature ceramics offers a unique route for fabrication of novel 3D radio frequency (RF) and microwave communication components, embedded electronics and sensors. This paper describes the first-ever direct 3D printing of low temperature co-fired ceramics/floating electrode 3D structures. Slurry-based AM and selective laser burnout (SLB) were used to fabricate bulk dielectric, Bi2Mo2O9 (BMO, sintering temperature = 620–650°C, εr = 38) with silver (Ag) internal floating electrodes. A printable BMO slurry was developed and the SLB optimised to improve edge definition and burn out the binder without damaging the ceramic. The SLB increased the green strength needed for shape retention, produced crack-free parts and prevented Ag leaching into the ceramic during co-firing. The green parts were sintered after SLB in a conventional furnace at 645°C for 4 h and achieved 94.5% density, compressive strength of 4097 MPa, a relative permittivity (εr) of 33.8 and a loss tangent (tan δ) of 0.0004 (8 GHz) for BMO. The feasibility of using SLB followed by a post-printing sintering step to create BMO/Ag 3D structures was thus demonstrated. |
| first_indexed | 2024-03-11T23:03:19Z |
| format | Article |
| id | doaj.art-20dbbd66c03140728f91e65344c04e8a |
| institution | Directory Open Access Journal |
| issn | 1745-2759 1745-2767 |
| language | English |
| last_indexed | 2024-03-11T23:03:19Z |
| publishDate | 2020-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Virtual and Physical Prototyping |
| spelling | doaj.art-20dbbd66c03140728f91e65344c04e8a2023-09-21T14:38:01ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672020-04-0115213314710.1080/17452759.2019.17080261708026Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9 ceramics with Ag floating electrodes by selective laser burnoutReza Gheisari0Henry Chamberlain1George Chi-Tangyie2Shiyu Zhang3Athanasios Goulas4Chih-Kuo Lee5Tom Whittaker6Dawei Wang7Annapoorani Ketharam8Avishek Ghosh9Bala Vaidhyanathan10Will Whittow11Darren Cadman12Yiannis C. Vardaxoglou13Ian M. Reaney14Daniel S. Engstrøm15Loughborough UniversityLoughborough UniversityLoughborough UniversityLoughborough UniversityLoughborough UniversityLoughborough UniversityLoughborough UniversityUniversity of SheffieldLoughborough UniversityLoughborough UniversityLoughborough UniversityLoughborough UniversityLoughborough UniversityLoughborough UniversityUniversity of SheffieldLoughborough UniversityAdditive manufacturing (AM) of co-fired low temperature ceramics offers a unique route for fabrication of novel 3D radio frequency (RF) and microwave communication components, embedded electronics and sensors. This paper describes the first-ever direct 3D printing of low temperature co-fired ceramics/floating electrode 3D structures. Slurry-based AM and selective laser burnout (SLB) were used to fabricate bulk dielectric, Bi2Mo2O9 (BMO, sintering temperature = 620–650°C, εr = 38) with silver (Ag) internal floating electrodes. A printable BMO slurry was developed and the SLB optimised to improve edge definition and burn out the binder without damaging the ceramic. The SLB increased the green strength needed for shape retention, produced crack-free parts and prevented Ag leaching into the ceramic during co-firing. The green parts were sintered after SLB in a conventional furnace at 645°C for 4 h and achieved 94.5% density, compressive strength of 4097 MPa, a relative permittivity (εr) of 33.8 and a loss tangent (tan δ) of 0.0004 (8 GHz) for BMO. The feasibility of using SLB followed by a post-printing sintering step to create BMO/Ag 3D structures was thus demonstrated.http://dx.doi.org/10.1080/17452759.2019.1708026additive manufacturingmetamaterialsmulti-material 3d printingselective laser burnoutco-fired ceramics |
| spellingShingle | Reza Gheisari Henry Chamberlain George Chi-Tangyie Shiyu Zhang Athanasios Goulas Chih-Kuo Lee Tom Whittaker Dawei Wang Annapoorani Ketharam Avishek Ghosh Bala Vaidhyanathan Will Whittow Darren Cadman Yiannis C. Vardaxoglou Ian M. Reaney Daniel S. Engstrøm Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9 ceramics with Ag floating electrodes by selective laser burnout Virtual and Physical Prototyping additive manufacturing metamaterials multi-material 3d printing selective laser burnout co-fired ceramics |
| title | Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9 ceramics with Ag floating electrodes by selective laser burnout |
| title_full | Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9 ceramics with Ag floating electrodes by selective laser burnout |
| title_fullStr | Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9 ceramics with Ag floating electrodes by selective laser burnout |
| title_full_unstemmed | Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9 ceramics with Ag floating electrodes by selective laser burnout |
| title_short | Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9 ceramics with Ag floating electrodes by selective laser burnout |
| title_sort | multi material additive manufacturing of low sintering temperature bi2mo2o9 ceramics with ag floating electrodes by selective laser burnout |
| topic | additive manufacturing metamaterials multi-material 3d printing selective laser burnout co-fired ceramics |
| url | http://dx.doi.org/10.1080/17452759.2019.1708026 |
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