Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Material based on SiAlONs
Sialon materials contain HFO2 in a maximum of 1 mass-% as a sintering additive, methods of producing them and methods of using them an α/β-SiAlON material with 5 mass % to 50 mass %, α/(α/β) RE-α-SiAlON wherein RE stands for at least one cation selected from the group consisting of Y, Sc, Lu, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Mg or Ca, and 95 mass % to 50 mass %, β/(α/β) β-SiAlON and of an Hf-containing amorphous or partially crystalline grain-boundary phase with a proportion with respect to the overall material is below 10 vol %, wherein the Hf content of the sintered material is 0.2 mass % to 1.0 mass %, and of a dispersion phase comprising globular particles with a mean particle size of from 0.2 μm to 15 μm, containing at least one hard material selected from the group consisting of SiC, TiN, TiC, Ti(C,N), carbides of further elements of groups IVb, Vb and VIb of the periodic system, nitrides of further elements of groups IVb, VB and VIb of the periodic system, scandium carbide and scandium oxycarbide, which are contained in the sintered compact in a proportion from 5 vol % to 30 vol %.
Material based on SiAlONs
Sialon materials contain HFO2 in a maximum of 1 mass-% as a sintering additive, methods of producing them and methods of using them an α/β-SiAlON material with 5 mass % to 50 mass %, α/(α/β) RE-α-SiAlON wherein RE stands for at least one cation selected from the group consisting of Y, Sc, Lu, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Mg or Ca, and 95 mass % to 50 mass %, β/(α/β) β-SiAlON and of an Hf-containing amorphous or partially crystalline grain-boundary phase with a proportion with respect to the overall material is below 10 vol %, wherein the Hf content of the sintered material is 0.2 mass % to 1.0 mass %, and of a dispersion phase comprising globular particles with a mean particle size of from 0.2 μm to 15 μm, containing at least one hard material selected from the group consisting of SiC, TiN, TiC, Ti(C,N), carbides of further elements of groups IVb, Vb and VIb of the periodic system, nitrides of further elements of groups IVb, VB and VIb of the periodic system, scandium carbide and scandium oxycarbide, which are contained in the sintered compact in a proportion from 5 vol % to 30 vol %.
Material based on SiAlONs
BITTERLICH BERND (Autor:in) / FRIEDERICH KILLIAN (Autor:in)
02.05.2017
Patent
Elektronische Ressource
Englisch
IPC:
B24D
TOOLS FOR GRINDING, BUFFING OR SHARPENING
,
Werkzeuge zum Schleifen, Polieren oder Schärfen
/
C04B
Kalk
,
LIME
/
C09C
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
,
Behandlung von anorganischen Stoffen, außer von faserigen Füllstoffen, zum Erhöhen ihrer pigmentierenden oder füllenden Eigenschaften
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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