Preparation of Aluminum Nitride Ceramics by Aqueous Tape Casting

Liu, Shichao; Ye, Feng; Liu, Limeng; Liu, Quang; Li, Junyi

doi:10.1080/10426914.2014.973592

Cited by 19 publications

(7 citation statements)

References 22 publications

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“…The binder is of particular importance. It could be based either on water or a non-aqueous solvent [147][148][149][150][151][152][153][154][155][156][157]. Aqueous slips are cheap, non-flammable, and less toxic but they require more energy and time to get dry.…”

Section: Tape Castingmentioning

confidence: 99%

Methods Used for the Compaction and Molding of Ceramic Matrix Composites Reinforced with Carbon Nanotubes

Мешалкин

Belyakov

2020

Processes

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Ceramic matrix composites reinforced with carbon nanotubes are becoming increasingly popular in industry due to their astonishing mechanical properties and taking into account the fact that advanced production technologies make carbon nanotubes increasingly affordable. In the present paper, the most convenient contemporary methods used for the compaction of molding masses composed of either technical ceramics or ceramic matrix composites reinforced with carbon nanotubes are surveyed. This stage that precedes debinding and sintering plays the key role in getting pore-free equal-density ceramics at the scale of mass production. The methods include: compaction in sealed and collector molds, cold isostatic and quasi-isostatic compaction; dynamic compaction methods, such as magnetic pulse, vibration, and ultrasonic compaction; extrusion, stamping, and injection; casting from aqueous and non-aqueous slips; tape and gel casting. Capabilities of mold-free approaches to produce precisely shaped ceramic bodies are also critically analyzed, including green ceramic machining and additive manufacturing technologies.

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Section: Tape Castingmentioning

confidence: 99%

Methods Used for the Compaction and Molding of Ceramic Matrix Composites Reinforced with Carbon Nanotubes

Мешалкин

Belyakov

2020

Processes

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“…In recent years, aluminum nitride (AlN) ceramics have been widely used. First of all, because of the extremely high theoretical thermal conductivity (319 W m −1 K −1 ), AlN has been an irreplaceable role in ceramic substrates 1–5 . Furthermore, due to the properties of good bending strength and hardness, low thermal expansion coefficient, and dielectric constant, AlN has also been successfully used in electrostatic chucks, high‐temperature‐resistant device, and other fields 6–9 …”

Section: Introductionmentioning

confidence: 99%

The effect of boron nitride nanosheets on the mechanical and thermal properties of aluminum nitride ceramics

Yang

Liang

et al. 2022

Int J Applied Ceramic Tech

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The boron nitride nanosheets (BNNSs)/aluminum nitride (AlN) composites were prepared by hot press sintering at 1600 • C. The microstructure, mechanical properties, and thermal conductivity of the samples were measured, and the effect of adding BNNSs to AlN ceramics on the properties was studied. It is found that the addition of BNNSs can effectively improve the mechanical properties of AlN. When the additional amount is 1 wt%, the bending strength of the sample reaches the maximum value of 456.6 MPa, which is 23.1% higher than that of the AlN sample without BNNSs. The fracture toughness of the sample is 4.47 MPa m 1/2 , a 68.7% improvement over the sample without BNNSs. The composites obtained in the experiment have brilliant mechanical properties.

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“…When compared to other production methods, tape casting can ensure high green bodies densities and good production efficiency [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…Despite this, both, non-aqueous and aqueous tape casting processes have been developed for AlN [2,3,6,[8][9][10][11][12]. Depending on the chosen system, different strategies of dispersion preparation are applied.…”

Section: Introductionmentioning

confidence: 99%

“…Most authors mixed all slurry components one after another, whereas in the case of aqueous tape casting, the authors first coated the surface of the AlN powder with a surface-active agent to prevent the powder hydrolysis. Liu et al [6] prepared AlN ceramics via aqueous tape casting. To prevent hydrolysis they treated the surface of AlN with a surface-active agent, namely 4 wt% phosphoric acid and 4 wt% aluminium dihydrogen phosphate.…”

Section: Introductionmentioning

confidence: 99%

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Tape casting of UV-curable aluminium nitride-based slurries

Ożóg

Kata

Graule

2018

Ceramics International

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Aluminium nitride (AlN) is one of the materials used for the preparation of substrates for electronic circuits. Such substrates can be prepared via tape casting method.Until now, only non-aqueous and aqueous tape casting was developed and studied for AlN. In this work, the development of UV-curable tape casting for AlN, including the use of photopolymerisable binder, is shown. Two different dispersing agents, BYK-W 9010 and glycerol trioleate, were used to stabilize and homogenize AlN dispersions. In order to modify the powder surface, a pre-treatment step was used, where the powder was first mixed with the dispersing agent in an azeotropic solvent mixture, followed by the evaporation of the solvents and the redispersing of the pre-conditioned powder into the reactive binder. The effective concentration of the dispersants, the impact of the solid loading on the viscosity and slurry behaviour, as well as the effect of the powder preconditioning, were studied by means of rheological measurements. Green tapes were optimised by evaluating the effect of the casting gap and the photo-and co-initiator

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Preparation of Aluminum Nitride Ceramics by Aqueous Tape Casting

Cited by 19 publications

References 22 publications

Methods Used for the Compaction and Molding of Ceramic Matrix Composites Reinforced with Carbon Nanotubes

Methods Used for the Compaction and Molding of Ceramic Matrix Composites Reinforced with Carbon Nanotubes

The effect of boron nitride nanosheets on the mechanical and thermal properties of aluminum nitride ceramics

Tape casting of UV-curable aluminium nitride-based slurries

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