摘要:
본 발명은 3D 프린팅용 성형소재와 3D 프린팅용 성형방법 및 성형체에 관한 것으로, 불규칙한 형상을 갖는 분말 상태의 비정질 유리를 기반으로 하면서도 우수한 유동성 및 소결성을 확보하여 고품질의 물품을 신속하게 성형하는 것이 가능하도록 한 것으로, 3D 프린팅용 성형소재의 경우, 비정질 유리가 파쇄되어 용융되지 않은 분말 상태로 불규칙 형상(irregular shape)을 갖도록 형성된 모재 유리분말과; 상기 모재 유리분말 평균 입경의 1/50보다 작은 평균 입경을 갖고 상기 모재 유리분말 표면에 위치하도록 혼합되어 3D 프린팅에 의한 성형시 불규칙 형상을 갖는 상기 모재 유리분말의 유동성을 높여주는 구형 나노분말로 이루어진 것을 특징으로 한다.
摘要:
Electronic devices are produced from dielectric compositions comprising a mixture of precursor materials that, upon firing, forms a dielectric material comprising a barium-strontium-titanium-tungsten-silicon oxide.
摘要:
(a) 유리 파우더, 바인더 및 용매를 포함하는 혼합물을 건조하는 단계; (b) 상기 건조된 혼합물을 프레싱(pressing)하여 1차 성형체를 형성하는 단계; (c) 상기 1차 성형체를 열처리하여 상기 바인더를 제거(burn out)하는 단계; 및 (d) 바인더를 제거한 1차 성형체를 몰드 프레싱(mold pressing)하여 2차 성형체를 형성하는 단계;를 포함하고, 상기 몰드 프레싱은 상기 유리 파우더의 점도가 10 4 poise 이하가 되는 온도인 working point에서 수행되는 것을 특징으로 한다.
摘要:
The present invention is directed to a process for producing a sintered lithium disilicate glass ceramic dental restoration out of a porous 3-dim article, the process comprising the step of sintering the porous 3-dim article having the shape of a dental restoration with an outer and inner surface to obtain a sintered lithium disilicate ceramic dental restoration, the sintered lithium disilicate glass ceramic dental restoration comprising - Si oxide calculated as SiO2 from 55 to 80 wt.-%, - Li oxide calculated as Li2O from 7 to 16 wt.-%, - Al oxide calculated as Al2O3 from 1 to 5 wt.-%, and - P oxide calculated as P2O5 from 1 to 5 wt.-%, wt.-% with respect to the weight of the dental restoration, the sintering being done under reduced atmospheric pressure conditions, the reduced atmospheric pressure conditions being applied at a temperature above 600°C. The present invention is also directed to a kit of parts comprising a porous 3-dim article having the shape of a dental milling block and a respective instruction of use.
摘要翻译:本发明涉及一种由多孔三维制品制造二硅酸锂玻璃陶瓷烧结烧结体的方法,该方法包括将具有外部形状的牙科修复物的多孔三维制品 和内表面以获得二硅酸烧结二氧化硅陶瓷牙科修复体,所述烧结的二硅酸锂玻璃陶瓷牙科修复物包含以SiO 2计为55〜80重量%的氧化硅氧化物,以Li 2 O计为7〜16重量% %, - Al氧化物计算为1至5重量%的Al 2 O 3和以P 2 O 5计算的氧化铝相对于牙科修复体的重量为1至5重量%,重量%,烧结为 在降低的大气压力条件下进行,在600℃以上的温度下施加降低的大气压条件。 本发明还涉及一种包括具有刨花板形状的多孔三维制品和相应的使用说明书的成套工具。
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung eines Rohlings aus Fe-dotiertem Kieselglas für den Einsatz als Wärmeschutzglas. Das Verhältnis von Fe 2+ / Fe 3+ wird in dem Verfahren zugunsten von Fe 2+ beeinflusst. Zusätzlich kann auf weitere Dotierstoffe verzichtet werden. Erfindungsgemäß umfasst das Verfahren folgende Schritte: (a) Herstellen eines Eisen-dotierten SiO 2 -Sootkörpers mittels Flammenhydrolyse einer Silizium enthaltenden und einer Eisen enthaltenden Ausgangssubstanz, (b) Trocknen des Sootkörpers derart, dass sich ein mittlerer Hydroxylgruppengehalt von weniger als 10 Gew.-ppm einstellt, (c) Verglasen des Sootkörpers, der Eisen in einem ersten Oxidationszustand Fe 3+ enthält, unter einer reduzierend wirkenden Atmosphäre, die geeignet ist das Eisen zumindest teilweise von dem ersten Oxidationszustand Fe 3+ in einen zweiten, niedrigeren Oxidationszustand Fe 2+ zu reduzieren, unter Bildung des Rohlings aus Eisen-dotiertem, hochkieselsäurehaltigem Glas. Es wird ein Rohling erhalten mit einem Eisen-Gehalt im Bereich zwischen 0,1 und 1 Gew.-%, der eine interne Transmission von maximal 40 % im infraroten Wellenlängenbereich und eine internen Transmission von mindestens 85 % im sichtbaren Spektralbereich zeigt.
摘要:
Building materials, such as roofing granules, including greater than 50% volume of glass are provided. In an exemplary embodiment, one or more additives including colored pigments, infrared-reflective particles, infrared-absorbing particles, algicidal particles, photocatalytic particles, thermally conductive particles, or electrically conductive particles are incorporated at least partially throughout or onto the granule.
摘要:
Building materials, such as roofing granules, including greater than 50% volume of glass are provided. In an exemplary embodiment, one or more additives including colored pigments, infrared-reflective particles, infrared-absorbing particles, algicidal particles, photocatalytic particles, thermally conductive particles, or electrically conductive particles are incorporated at least partially throughout or onto the granule.