Search Results - "Schöppl, Oskar"

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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Surface strength of balls made of five structural ceramic materials evaluated with the Notched Ball Test (NBT) by Strobl, Stefan, Lube, Tanja, Supancic, Peter, Schöppl, Oskar, Danzer, Robert

“…In high performance hybrid bearings the balls are conventionally made of silicon nitride ceramics. There are some disadvantages such as costs or the higher…”
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Toughness measurement on ball specimens. Part II: Experimental procedure and measurement uncertainties by Strobl, Stefan, Lube, Tanja, Schöppl, Oskar

“…The “Surface Crack in Flexure” method is widely used for fracture toughness (KIc) determination of ceramics. In part I of the paper we developed the…”
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A new strength test for ceramic cylinders—The Notched Roller Test by Strobl, Stefan, Supancic, Peter, Schöppl, Oskar, Danzer, Robert

“…A new tensile strength test for ceramic rollers (cylinders) is presented, following the idea of the previously published and since that time standardized…”
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Mechanical properties of silicon nitride rolling elements in dependence of size and shape by Strobl, Stefan, Lube, Tanja, Supancic, Peter, Stoiser, Martin, Schöppl, Oskar, Danzer, Robert

“…Silicon nitride rolling elements for hybrid bearings (rollers, two sizes of balls and plate material as a reference) made from the same material lot and using…”
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