Colloidal processing and characterization of TiO<sub>2</sub>–MnO‐doped alumina/alumina slurries and tapes

Barros, Marcelo Daniel; Hotza, Dachamir; Janßen, Rolf

doi:10.1002/ces2.10087

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2021

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“…In another work, the stability and rheology of colloidal suspensions of undoped and doped alumina suspensions were studied. 16 In the present work,…”

Section: Introductionmentioning

confidence: 67%

Dopant diffusion at the interface of TiO₂‐MnO‐doped alumina/alumina layers in sintered laminates

Barros

Hotza

Janßen

2021

Int J Ceramic Engine & Sci

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Alumina is a ceramic oxide with excellent properties, such as high strength, hardness, corrosion, chemical stability, and wear resistance. [1][2][3] High purity alumina bodies usually require high sintering temperatures-usually over 1400°C-to reach relative densities close to 100%. 4 Additives-such as TiO 2 , MnO, MgO, Cu 2 O, ZrO 2 , Y 2 O 3, and Li 2 O 3 -have been employed to increase alumina sinterability and achieve full density while controlling grain growth. 5,6 Sintering aids can enhance sintering due to the formation of lattice defects, solid solutions, or liquid phases. Generally, there is an optimal amount of additives, which varies with the sintering temperature to achieve higher densification. 7,8 TiO 2 is a crystal growth promoter and sintering aid for alumina. Even small amounts (0.2 mol%) can effectively enhance diffusion, 9 particularly at grain boundaries. For submicrometric titania, a gradual change was observed

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“…In another work, the stability and rheology of colloidal suspensions of undoped and doped alumina suspensions were studied. 16 In the present work,…”

Section: Introductionmentioning

confidence: 67%

Dopant diffusion at the interface of TiO₂‐MnO‐doped alumina/alumina layers in sintered laminates

Barros

Hotza

Janßen

2021

Int J Ceramic Engine & Sci

Self Cite

View full text Add to dashboard Cite

show abstract

Colloidal processing and characterization of TiO₂–MnO‐doped alumina/alumina slurries and tapes

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 1 publication

References 20 publications

Dopant diffusion at the interface of TiO₂‐MnO‐doped alumina/alumina layers in sintered laminates

Dopant diffusion at the interface of TiO₂‐MnO‐doped alumina/alumina layers in sintered laminates

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Colloidal processing and characterization of TiO2–MnO‐doped alumina/alumina slurries and tapes

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 1 publication

References 20 publications

Dopant diffusion at the interface of TiO2‐MnO‐doped alumina/alumina layers in sintered laminates

Dopant diffusion at the interface of TiO2‐MnO‐doped alumina/alumina layers in sintered laminates

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Product

Resources

About

Colloidal processing and characterization of TiO₂–MnO‐doped alumina/alumina slurries and tapes

Dopant diffusion at the interface of TiO₂‐MnO‐doped alumina/alumina layers in sintered laminates

Dopant diffusion at the interface of TiO₂‐MnO‐doped alumina/alumina layers in sintered laminates