Wet chemical porosification of LTCC in phosphoric acid: Anorthite forming tapes

Steinhäußer, Frank; Hradil, K.; Schwarz, Sabine; Artner, Werner; Stöger-Pollach, Michael; Steiger‐Thirsfeld, Andreas; Bittner, A.; Schmid, U.

doi:10.1016/j.jeurceramsoc.2015.06.032

Cited by 13 publications

(2 citation statements)

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“…After sintering, besides Al 2 O 3 , the anorthite (CaAl 2 Si 2 O 8 ), which was a product of the nucleation and crystallization in the glass phase, was also detected by XRD. [ 38,39 ]…”

Section: Resultsmentioning

confidence: 99%

“…After sintering, besides Al 2 O 3 , the anorthite (CaAl 2 Si 2 O 8 ), which was a product of the nucleation and crystallization in the glass phase, was also detected by XRD. [38,39] A FE-SEM (Ultra Plus FE-SEM, Carl Zeiss, Germany) with integrated EDS (X-Max 20, Oxford Instrument, UK) was employed to analyze the cross-section of sintered LTCC ceramic and silver conductor. According to the secondary electron image of the ceramic cross-section (Figure 7b), the sintered LTCC was almost a dense body although there were a few voids.…”

Section: Composition Analysis Of Ltcc and Silver Conductormentioning

confidence: 99%

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Multimaterial Additive Manufacturing of LTCC Matrix and Silver Conductors for 3D Ceramic Electronics

Wang

et al. 2022

Adv Materials Technologies

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Ceramic electronics have the advantages of large ampacity, high thermal conductivity, and excellent dielectric properties which are widely used in power electronics, optoelectronics, automotive industry, and aerospace technology. This work proposes a multimaterial dispensing additive manufacturing technology for customizing the 3D low‐temperature‐cofired ceramic (LTCC) circuitry. Customized LTCC aqueous slurry is first developed and then 3D printed together with commercial silver paste to build the green body. Then, the green body is debinded and sintered with a three‐stage process at 200, 500, and 850 °C, respectively. The shrinkage rate in 3D is around 17% which is comparable with commercial LTCCs. The surface quality of the sintered ceramic is improved obviously compared with that of the green body due to the glazing effect of the glass phase. For the silver conductor, the resistivity and the temperature coefficient of resistance are 2.34 ± 0.04 µΩ cm and 3.56 × 10−3 °C−1, respectively. A serial of demonstrators including 2D, 3D light‐emitting diode ceramic circuit boards and a ceramic heater/thermometer is developed to prove the potential and feasibility of the proposed technology.

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“…After sintering, besides Al 2 O 3 , the anorthite (CaAl 2 Si 2 O 8 ), which was a product of the nucleation and crystallization in the glass phase, was also detected by XRD. [ 38,39 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Composition Analysis Of Ltcc and Silver Conductormentioning

confidence: 99%