Influence of Relative Humidity on Mechanical Properties of Alumina, PZT and Zirconia

Laag, N.J. van der; Dortmans, L.J.M.G.; With, G. de

doi:10.4028/www.scientific.net/kem.206-213.751

Cited by 7 publications

(4 citation statements)

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“…26 It is also seen that all three materials under cyclic loading present damage much earlier than under static loading. This is better seen in Fig.…”

Section: Discussionmentioning

confidence: 91%

Hertzian contact fatigue on alumina/alumina-zirconia laminated composites

Jiménez‐Piqué

Ceseracciu

Chalvet

et al. 2005

Journal of the European Ceramic Society

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“…26 It is also seen that all three materials under cyclic loading present damage much earlier than under static loading. This is better seen in Fig.…”

Section: Discussionmentioning

confidence: 91%

Hertzian contact fatigue on alumina/alumina-zirconia laminated composites

Jiménez‐Piqué

Ceseracciu

Chalvet

et al. 2005

Journal of the European Ceramic Society

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“…In addition to the static effects, a higher content of cubic phase influences the aging process of zirconia and prevents hydrothermal aging in which the tetragonal phase is converted to the monocline phase due to heat and humidity and the material is weakened. Since both, CNB 24) and SEVNB 26) are known for their sensitivity to moisture, constant conditions during the measurements were ensured in this study. Due to notching, cutting and cleansing under aqueous environment and capillary action, stress crack corrosion and hydrothermal aging could be accelerated as well as fracture toughness be affected in different manners for the materials and methods.…”

Section: Materials Characteristicsmentioning

confidence: 99%

Comparison of fracture toughness measurements for zirconia materials using two test methods

et al. 2019

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To determine the influence of the fracture toughness (KIC) methods [single-edge-V-notch-beam (SEVNB) and chevron-notch-beam (CNB)] as well as an optional heat treatment on the KIC of three different zirconia generations (1st: ZI, 3rd: FX, 4th: HT). One hundred and twenty specimens each (3×4×45 mm) were fabricated, sintered, notched (n=360) and half of them heat treated before KIC measurements with 4-point-flexural-strength test. SEM images of the notches were recorded. Highest KIC was found for ZI followed by HT and FX. SEVNB resulted in significantly higher KIC than CNB. Heat treatment resulted in decrease for SEVNB and increase for CNB of KIC (except for FX). Groups tested using CNB showed higher reliability of values (Weibull modulus) than tested using SEVNB. SEM images present crack path and fracture surface. Different zirconia materials lead to different KIC values. The test method and a prior heat treatment showed an influence on the KIC values and their reliability.

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“…It is commonly known that mechanical properties of aluminum oxide are influenced by humidity [12]. Increasing humidity decreases the fracture toughness, which can have a large effect on the resulting solid particle erosion rates [13].…”

Section: Powder Humiditymentioning

confidence: 99%