Abstract: A hot-formed, chemically prestressable glass article having a low percentage of crystals or crystallites, in particular a plate-shaped, chemically prestressable glass article, as well as to a method and a device for its production are provided. The glass article has a composition including the components SiO2, Al2O3, and Li2O and a content of seed formers (ZrO2, SnO2, and TiO2) of at least 0.8 wt %, as well as at most ten crystals, including crystallites, per kilogram of glass, which have a maximum diameter greater than 1 ?m and up to at most 5 ?m.

Abstract: A hot-formed, chemically prestressable glass article having a low percentage of crystals or crystallites, in particular a plate-shaped, chemically prestressable glass article, as well as to a method and a device for its production are provided. The glass article has a composition including the components SiO2, Al2O3, and Li2O and a content of seed formers (ZrO2, SnO2, and TiO2) of at least 0.8 wt %, as well as at most ten crystals, including crystallites, per kilogram of glass, which have a maximum diameter greater than 1 ?m and up to at most 5 ?m.

Abstract: An imaging system includes at least one laser light source having a wavelength in the visible spectral range and a beam guidance element with high solarization resistance at high beam power densities. The invention also relates to the use of the imaging system, in particularly in projectors and in material processing.

Abstract: An optical glass has a refractive index nd of more than 2.10 and includes at least TiO2, NbO2.5, LaO1.5, SiO2, and B2O3. The glass has the following features: a cation parameter K of 1.8<K?2.8, wherein K=(Ti-eq.+SiO2+(BO1.5)/2)/(La-eq.), the molar fractions of Ti-eq., SiO2, BO1.5 and La-eq. in the cation parameter K being in cat %; a sum total of glass components SiO2 and B2O3 of 8.0 mol %?(SiO2+B2O3)?20.0 mol %, the proportion of B2O3 being >0 mol % and the proportion of SiO2>0 mol %; and a temperature Tmax?1330° C.

Abstract: A chemically toughenable or toughened sheet-like glass article is provided. The article has a glass with a composition comprising Al2O3, SiO2, Li2O, and Na2O, wherein (Al2O3)?(Li2O+Na2O), in mol %, is less than 0; a thickness between 0.3 mm and 4 mm; a light transmittance of at least 0.001% to at most 60% at 450 nm, of at least 0.001% to at most 30% at 540 nm, and of at least 0.001% to at most 30% at 630 nm; and an IR transmittance of at least 10% to not more than 99% at any wavelength in a wavelength range from 900 nm to 1100 nm. The light and IR transmittances are determined for a thickness of the article of 1 mm.

Abstract: An imaging system, includes: a laser light source having a wavelength from 380 nm to 490 nm; and a beam guidance element, the laser light source configured for generating an average surface power density of more than 10 W/cm2, the beam guidance element including a glass which has a quality factor F(436 nm)=S(436 nm)*(Abs0(436 nm)+Abs1(436 nm))/k, wherein S(436 nm) is a thermality at a wavelength of 436 nm, Abs1(436 nm) is an additional absorbance in comparison to Abs0(436 nm) at a wavelength of 436 nm after an irradiation with a power density of 345 W/cm2 for 72 hours with a laser light having a wavelength of 455 nm, Abs0(436 nm) is an absorbance at a wavelength of 436 nm of a sample having a thickness of 100 mm without the irradiation, k is the thermal conductivity, and the quality factor F(436 nm) is <15 ppm/W.

Abstract: A glass includes the following components in the specified proportions (in % by weight): 50-80% SiO2, 2-30% B2O3, 0-5% Al2O3, 0-10% CaO, 0-10% BaO, 0-5% Li2O, 0-20% Na2O, 1-25% K2O, and 5-30% ?R2O. R2O includes at least one alkali metal oxide. The glass includes at least one first solarization component and at least one second solarization component. A proportion of the first solarization component in the glass is in a range from 0.01 to <1.0 ppm (by weight) and a proportion of the second solarization component in the glass is in a range from 1000 to 10,000 ppm (by weight).

Abstract: The present disclosure relates to a lithium ion conductive material, preferably a lithium ion conductive glass ceramic, the material including a garnet-type crystalline phase content and an amorphous phase content. The material has a sintering temperature of 1000° C. or lower, preferably 950° C. or lower and an ion conductivity of at least 1*10?5 S/cm, preferably at least 2*10?5 S/cm, preferably at least 5*10?5 S/cm, preferably at least 1*10?4 S/cm, and the amorphous phase content includes boron and/or a composition including boron.

Abstract: A chemically toughened or chemically toughenable sheet-like glass article is provided. The glass article includes a glass with a composition having Al2O3, SiO2, Li2O, and B2O3. The glass and/or the glass article includes not more than 7 w t% of B2O3.

Abstract: The present disclosure relates to a method for producing a solid electrolyte comprising lithium-ion conductive glass-ceramics. The method includes the steps of: providing at least one lithium ion conductor having a ceramic phase content and amorphous phase content; providing a powder of said at least one lithium ion conductor, the powder having a polydispersity index between 0.5 and 1.5, more preferably between 0.8 and 1.3, and most preferably between 0.85 and 1.15; and at least one of a) incorporating the powder into a polymer electrolyte or a polyelectrolyte and b) forming an element using the powder.

Abstract: An imaging system includes at least one laser light source having a wavelength in the visible spectral range and a beam guidance element with high solarization resistance at high beam power densities. The invention also relates to the use of the imaging system, in particularly in projectors and in material processing.

Abstract: The disclosure relates to an aluminum-doped lithium ion conductor based on a garnet structure comprising lanthanum, in particular an aluminum-doped lithium lanthanum zirconate (LLZO), in which the latter is co-doped with at least one trivalent M3+ ion on the lanthanum site, and in which the trivalent M3+ ion has an ionic radius that is smaller than that of La3+, and a higher lithium content is present in comparison to a stoichiometric garnet structure, with the provision that if M3+ is yttrium, a further trivalent M3+ ion, which is different than Y3+ and has an ionic radius that is smaller than that of La3+, is co-doped on the lanthanum site. A co-doping strategy is carried out, in which a doping on the lanthanum site with ions of the same valence, but smaller diameter brings about the change in the lattice geometry to the cubic modification. This leads to a stabilization of the cubic crystal modification that is present also with superstoichiometric quantities of lithium.

Abstract: A chemically prestressed or chemically prestressable, plate-shaped or disc-shaped glass article is provided. The glass article includes a glass with a composition of Al2O3, SiO2, Na2O, and Li2O and a prestressing or a prestressability in relation to the weight percent of Na2O of at least 250 MPa/g Na2O in 100 g of glass. The Na2O is present in a weight percent between at least 0.8 and at most 6.

Abstract: A hot-formed, chemically prestressable glass article having a low percentage of crystals or crystallites, in particular a plate-shaped, chemically prestressable glass article, as well as to a method and a device for its production are provided. The glass article has a composition including the components SiO2, Al2O3, and Li2O and a content of seed formers (ZrO2, SnO2, and TiO2) of at least 0.8 wt %, as well as at most ten crystals, including crystallites, per kilogram of glass, which have a maximum diameter greater than 1 ?m and up to at most 5 ?m.