摘要:
The present invention relates to a low-temperature co-fired ceramic powder and a preparation method and application thereof. The material composition of the low-temperature co-fired ceramic powder is xRO-yM2O3-zXO2, where R is at least one of Mg, Ca, Ba, Zn, Cu, and Pb, M is at least one of B, Al, Co, In, Bi, Nd, Sm, and La, X is at least one of Si, Ge, Sn, Ti, Zr, and Hf, 0 ≤ x ≤ 85 wt%, 15 wt% ≤ y ≤ 90 wt%, 10 wt% ≤ z ≤85 wt%, and x + y + z = 1; and the low-temperature co-fired ceramic powder is obtained by high-temperature melting, quenching, and recrystallization treatment. The temperature of high-temperature melting is 1,200°C to 1,600°C, and the temperature of recrystallization treatment is 500°C to 900°C.
摘要:
The present invention provides a white glass container which does not contain a fluorine compound in a significant amount, which has a multi-layer structure derived from a phase separation phenomenon of a glass composition in part or the whole of the white glass container without depending on melting conditions or molding conditions of the glass composition, and which is excellent in mechanical strength or whiteness, and a method of efficiently manufacturing the white glass container. In the white glass container and the method of manufacturing the white glass container, the multi-layer structure, which is derived from a phase separation phenomenon of the glass composition having the following glass blending composition on the basis of the total amount and which includes a white transparent layer having relatively low whiteness and a white opaque layer having relatively high whiteness, is provided in part or the whole of the white glass container. SiO 2 : 45% by weight to 58% by weight, P 2 O 5 : 2% by weight to 8% by weight, Al 2 O 3 : 5% by weight to 9% by weight, B 2 O 3 : 5% by weight to 13% by weight, Na 2 O: 5% by weight to 12% by weight, K 2 O: 1% by weight to 6% by weight, ZnO: 3% by weight to 10% by weight, CaO: 3% by weight to 10% by weight, CeO 2 : 0.1% by weight to 2% by weight, and Er 2 O 3 : 0.01% by weight to 0.5% by weight.
摘要:
The invention relates to a combination for a bactericidal ceramic enamel with micro-roughness, characterised in that it comprises a first formulation and a second formulation, each formulation having a defined quantity of zinc cations, such that the first formulation comprises an equivalent percentage of ZnO of
摘要:
A solid oxide ceramic includes a substrate defining a surface, the substrate including at least one material selected from the group consisting of yttria-stabilized zirconia (YSZ), lanthanum strontium titanate (LST), lanthanum strontium manganite (LSM), and nickel oxide -YSZ composite. The solid oxide ceramic further includes a seal coating at least a portion of the surface, the seal including a Sanbornite (BaO⋅2SiO 2 ) crystal phase, a Hexacelsian (BaO⋅Al 2 O 3 ⋅2SiO 2 ) crystal phase, and a residual glass phase, wherein the seal has a coefficient of thermal expansion equal to or less than that of the substrate at said surface. The glass composition can have a difference between a glass crystallization temperature and a glass transition temperature in a range of between about 200 °C and about 400 °C at a heating rate of about 20 °C/min.
摘要:
Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.
摘要:
Die Erfindung betrifft eine mit nanoskaligem Metalloxid dotierte Leucit-Glaskeramik, ein zu ihrer Herstellung geeignetes dotiertes Leucit-Glaskeramik-Pulver, Verfahren zur Herstellung der dotierten Leucit-Glaskeramik, ihre Verwendung als Dentalmaterial, ein sie umfassendes Dentalprodukt und die Verwendung der nanoskaligen Metalloxid-Pulver zur Herstellung der dotierten Glaskeramik bzw. des dotierten Leucit-Glaskeramik-Pulvers.