Joining of Ceramic Materials Using Spin-On Interlayers

Case, Eldon D.; Crimp, M. A.

doi:10.1002/1527-2648(200106)3:6<395::aid-adem395>3.0.co;2-a

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…1316) Case and Crimp 17) joined ceramic materials using spin-on interlayer technique by the application of a liquid to the surface of the material to be joined. Subsequently, the liquid is dispersed over the specimen surface by high speed spinning resulting is formation of thin interlayer needed for joining of ceramics.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Reliable Joints of Alumina Ceramics by Microwave-Assisted Reactive Brazing Technique

et al. 2016

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Microwave-assisted reactive brazing technique was utilized for joining of alumina ceramics at 950°C and 1050°C for 20 min in argon atmosphere using .5Ti in mass%) paste as the braze alloy. Conventional heating technique was also employed for comparison purpose only. The microwave and conventionally brazed joints were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis and Vickers microhardness measurement. X-ray diffraction data showed that the Ti-based compounds were formed at the substrate-filler alloy interfaces of the microwave and conventionally brazed joints. Scanning electron microscopy exhibited the formation of thicker reaction region in the case of joints microwave brazed at higher temperature. Energy dispersive X-ray analysis determined the elemental compositions across the joint cross-section. Vickers microhardness measurements indicated more reliable performance of the joints microwave brazed at lower temperature. Hermiticity of the microwave and conventionally brazed joints was evaluated by Helium leak test and found to be acceptable for actual applications.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Reliable Joints of Alumina Ceramics by Microwave-Assisted Reactive Brazing Technique

et al. 2016

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“…This study is an extension of a series by the authors on bone and engineered bone tissue materials, including the role of hydroxyapatite (HA) surfaces in the regulation of osteoblast (OB) gene expression and phenotype,1 electrostatic interactions of biomaterials with OBs and whole bone,2 the electrostatic attraction between OBs and calcium‐deficient apatites and OBs and biphasic calcium phosphate,3 and the effect of HA on differentiation and growth of MC3T3‐E1 OBs 4. Additionally, the authors' recent work includes studies on the dependence of the hardness5 and dielectric constant6 on volume fraction porosity of HA, as well as studies on microcracking,7, 8 biaxial flexure strength,9 and ceramic/ceramic joining by both microwave and conventional sintering 10–14. Recently, the authors were among the first to apply confocal laser scanning microscopy (CLSM) to the study on porosity in HA specimens,15 based in part on studies on the morphology of surface channels in zirconia ceramics 16–18…”

Section: Introductionmentioning

confidence: 99%

Confocal laser scanning microscopy as a tool for imaging cancellous bone

et al. 2006

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Understanding the bimodal structure of cancellous bone is important for tissue engineering in order to more accurately fabricate scaffolds to promote bone ingrowth and vascularization in newly forming bone. In this study, confocal laser scanning microscopy (CLSM) was used to create detailed images of the bimodally porous intertrabecular space of defatted and deproteinized cancellous canine bone taken from the epiphysis of the humerus. The bimodal pore structure was imaged using both reflective and fluorescent modes in CLSM, resulting in four different, but complementary image types: (1) a Z-stack overlay, (2) a phi-Z scan, (3) a topographical map, and (4) a contour map. Submerging the bone in rhodamine B dye prior to fluorescent imaging enhanced the pore surface details, giving a more accurate pore size measurement. The average macropore diameter was found to be 260 +/- 97 microm while the average micropore diameter was 13 +/- 10 microm. When compared with common techniques, including microcomputed tomography, magnetic resonance imaging, scanning electron microscopy, and environmental scanning electron microscopy, for imaging cancellous bone, CLSM was found to be an effective tool, given its ability to nondestructively image the surface and near-surface pore structure.

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“…Microchannels and mesochannels of many different cross‐sectional shapes have been produced in a variety of materials, including metals 15 , fused silica and borosilicate glass 3,16 , silicon 4,6,8,9,11,17 , along with polycrystalline ceramics such as zirconia 18–21 , alumina 21–23 , hydroxyapatite 24–26 , and ceramic composites 19,20,22,27 . Microscale and mesoscale channels intended for fluid flow have been investigated in channel cross‐sectional shapes that include rectangular 11,16–18,21,22,24 , circular 2,16,20,23 , triangular 4,6 , rhombohedral 12 , and semi‐circular channels 3,19,28 .…”

Section: Introductionmentioning

confidence: 99%

Machining and Ceramic/Ceramic Joining to Form Internal Mesoscale Channels

Case

Ren

Kwon

et al. 2004

Int J Applied Ceramic Tech

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Ceramics and semiconducting materials with internal channels are crucial in a variety of diverse technologies such as “lab on a chip,” fuel cell applications, and cooling of microelectronics. In this paper, techniques for fabricating internal channels in brittle materials first are reviewed. Then, the mechanical machining of surface channels in 99.99% pure alumina partially sintered at 600°C and 700°C is discussed. After machining, the partially sintered alumina is sintered to a density of about 97% of theoretical and then joined to 96% pure alumina to convert the surface channels into internal channels.

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Joining of Ceramic Materials Using Spin-On Interlayers

Cited by 9 publications

References 11 publications

Fabrication of Reliable Joints of Alumina Ceramics by Microwave-Assisted Reactive Brazing Technique

Fabrication of Reliable Joints of Alumina Ceramics by Microwave-Assisted Reactive Brazing Technique

Confocal laser scanning microscopy as a tool for imaging cancellous bone

Machining and Ceramic/Ceramic Joining to Form Internal Mesoscale Channels

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