Search Results - "Harrer, Walter"

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…”
Get full text

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…”
Get full text

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…”
Get full text

Failure analysis of a ceramic ball race bearing made of Y-TZP zirconia by Harrer, Walter, Deluca, Marco, Morrell, Roger

“…•We investigated a full ceramic bearing (ZrO2-races, Si3N4-rolling bearing balls) which failed during service.•The bearing failed because of premature…”
Get full text

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…”
Get full text

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…”
Get full text

Ceramic materials as an alternative for conventional spark plug electrodes by Harrer, Walter, Gruber, Manuel, Melcher, Verena, Tilz, Anton, Engelmayer, Michael, Wimmer, Andreas, Bermejo, Raul

“…Large gas engines are typically applied to compensate for peak loads and grid instabilities in the electric power supply. A key component of these engines is…”
Get full text

Feasibility study on electrically conductive joining of MoSi2 electrodes for spark plugs by Gruber, Manuel, Tilz, Anton, Harrer, Walter, Papsik, Roman, Fimml, Wolfgang, Engelmayer, Michael

“…Despite the often outstanding functional as well as (high temperature‐) mechanical properties of ceramics, their usage is often limited due to their inherent…”
Get full text

Feasibility study on electrically conductive joining of MoSi 2 electrodes for spark plugs by Gruber, Manuel, Tilz, Anton, Harrer, Walter, Papsik, Roman, Fimml, Wolfgang, Engelmayer, Michael

“…Abstract Despite the often outstanding functional as well as (high temperature‐) mechanical properties of ceramics, their usage is often limited due to their…”
Get full text

The ball on three balls test—Strength and failure analysis of different materials by Danzer, Robert, Harrer, Walter, Supancic, Peter, Lube, Tanja, Wang, Zhonghua, Börger, Andreas

“…The ball on three balls (B3B) test is a new method for biaxial strength testing of brittle materials. A detailed analysis of the stress field in the specimens…”
Get full text

Silicon nitride tools for hot rolling of high-alloyed steel and superalloy wires – load analysis and first practical tests by Danzer, Robert, Lengauer, Markus, Zleppnig, Walter, Harrer, Walter

“…For hot rolling wires of high-alloyed steels or superalloys tools are nowadays made of cemented carbides. In service they suffer from roughening of the…”
Get full text