Search Results - "Danzer, Robert"

On the relationship between ceramic strength and the requirements for mechanical design by Danzer, Robert

“…During the last fifty years the mechanical properties of ceramic materials have been greatly improved, their toughness and strength have been increased and the…”
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Fractography of zirconia-specimens made using additive manufacturing (LCM) technology by Harrer, Walter, Schwentenwein, Martin, Lube, Tanja, Danzer, Robert

“…A relatively new method to manufacture complex ceramic prototypes and components is additive manufacturing (AM). With the LCM (Lithography-based Ceramic…”
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Some notes on the correlation between fracture and defect statistics: Are Weibull statistics valid for very small specimens? by Danzer, Robert

“…Strength data of brittle materials show a significant scatter. Therefore probabilistic methods have to be used for designing with these materials. So far this…”
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Chairside CAD/CAM materials. Part 2: Flexural strength testing by Wendler, Michael, Belli, Renan, Petschelt, Anselm, Mevec, Daniel, Harrer, Walter, Lube, Tanja, Danzer, Robert, Lohbauer, Ulrich

“…Abstract Objective Strength is one of the preferred parameters used in dentistry for determining clinical indication of dental restoratives. However, small…”
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Corrigendum to“surface crack in tension or in bending – A reassessment of the Newman and Raju formula in respect to fracture toughness measurements in brittle materials” [J. Eur. Ceram. Soc. 32 (8) (2012) 1491–1501] by Strobl, Stefan, Supancic, Peter, Lube, Tanja, Danzer, Robert

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High temperature mechanical properties of zirconia tapes used for electrolyte supported solid oxide fuel cells by FLEISCHHAUER, Felix, BERMEJO, Raul, DANZER, Robert, MAI, Andreas, GRAULE, Thomas, KUEBLER, Jakob

“…Solid-Oxide-Fuel-Cell systems are efficient devices to convert the chemical energy stored in fuels into electricity. The functionality of the cell is related…”
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Surface crack in tension or in bending – A reassessment of the Newman and Raju formula in respect to fracture toughness measurements in brittle materials by Strobl, Stefan, Supancic, Peter, Lube, Tanja, Danzer, Robert

“…The Newman and Raju formula for the stress intensity factor of a semi-elliptical surface crack loaded in uniaxial tension or in bending has been developed…”
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Fracture toughness of silicon nitride balls via thermal shock by Strobl, Stefan, Adlmann, Franz-Alois, Supancic, Peter, Lube, Tanja, Danzer, Robert, Schöppl, Oskar

“…A new method for fracture toughness determination of ceramic balls is presented. The starter crack is introduced into the surface of the ball by a Knoop…”
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Influence of surface defects on the biaxial strength of a silicon nitride ceramic – Increase of strength by crack healing by Harrer, Walter, Danzer, Robert, Morrell, R.

“…Failure of brittle materials starts in general from defects which exist in the volume or on the surface of the specimens. Surface flaws, which are more…”
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A new test to determine the tensile strength of brittle balls—The notched ball test by Supancic, Peter, Danzer, Robert, Witschnig, Stefan, Polaczek, Erich, Morrell, Roger

“…A new strength test for ceramic spheres (balls) is presented. A long narrow notch is cut in the equatorial plane of the ball and the ball is then loaded in…”
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Failure analysis of silicon nitride rings for hot rolling of highly alloyed steel and superalloy wires by Harrer, Walter, Morrell, Roger, Lengauer, Markus, Danzer, Robert, Berroth, Karl, Zleppnig, Walter

“…Rolls for rolling of metal wires are traditionally made from cemented carbides, but they suffer from roughening of the working surfaces and severe wear which…”
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Biaxial bending strength testing of uniaxially curved thin plates using a modified ball on three balls test by Supancic, Peter, Maurer, Florian, Danzer, Robert

“…•Strength test for uniaxially curved glass plates developed.•Application of Weibull theory to strength data with respect to different effective size. Glass…”
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Influence of Threshold Stress on the Estimation of the Weibull Statistics by Lu, Chunsheng, Danzer, Robert, Fischer, Franz Dieter

“…The influence of threshold stress on the estimation of the Weibull statistics is discussed in terms of the Akaike information criterion. Numerical simulations…”
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In Memoriam Prof. Dr. phil. Dr. techn. h. c. mult. Hellmut F. Fischmeister (1927–2019) by Arzt, Eduard, Danzer, Robert

“…An obituary for metallurgists and materials scientist Hellmut F. Fischmeister, who died on November 6, 2019 at 92-years-old, is presented…”
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Fracture statistics of brittle materials: Weibull or normal distribution by Lu, Chunsheng, Danzer, Robert, Fischer, Franz Dieter

“…The fit of fracture strength data of brittle materials (Si(3)N(4), SiC, and ZnO) to the Weibull and normal distributions is compared in terms of the Akaike…”
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Synthesis of Aluminum Oxide Platelets by Hill, Richard F., Danzer, Robert, Paine, Robert T.

“…Aqueous solutions of boehmite and hydrofluoric acid (HF) were used to prepare homogeneous mixtures of alumina and aluminum fluoride. Calcination at…”
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Monte Carlo Simulations of Strength Distributions of Brittle Materials – Type of Distribution, Specimen and Sample Size by Danzer, Robert, Lube, Tanja, Supancic, Peter

“…Strength data of brittle materials have a large scatter. Therefore, probabilistic methods have been developed for designing with brittle materials. In general,…”
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Piezotronically Modified Double Schottky Barriers in ZnO Varistors by Raidl, Nadine, Supancic, Peter, Danzer, Robert, Hofstätter, Michael

“…Double Schottky barriers in ZnO are modified piezotronically by the application of mechanical stresses. New effects such as the enhancement of the potential…”
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Influence of the surface condition on the biaxial strength of a commercial silicon carbide by Harrer, Walter, Danzer, Robert, Rendtel, Andreas

“…Ceramic materials fail from defects which are distributed on the surface or in the bulk of specimens and components. The more dangerous surface flaws are often…”
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Strength of an electrolyte supported solid oxide fuel cell by Fleischhauer, Felix, Bermejo, Raul, Danzer, Robert, Mai, Andreas, Graule, Thomas, Kuebler, Jakob

“…For the proper function of solid oxide fuel cells (SOFC) their structural integrity must be maintained during their whole lifetime. Any cell fracture would…”
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