Patent classifications
C03B19/01
ADDITIVE MANUFACTURING SYSTEM, METHOD, AND ARTICLE
A glass article manufacturing system 20 includes a crucible 44. The crucible 44 includes a barrel 52 and a nozzle 60. The barrel receives a feedstock. A translational stage 92 is positioned below the nozzle of the crucible. The translational stage is movable. A heater 72 is in thermal communication with the nozzle such that thermal energy provided by the heater is transferred to the feedstock. A feeder assembly 32 is positioned proximate the barrel of the crucible such that the feeder assembly feeds the feedstock into the barrel. The translational stage may provide negative pressure to retain a build plate to the translational stage. A preformed component may be positioned on the translational stage.
ADDITIVE MANUFACTURING SYSTEM, METHOD, AND ARTICLE
A glass article manufacturing system 20 includes a crucible 44. The crucible 44 includes a barrel 52 and a nozzle 60. The barrel receives a feedstock. A translational stage 92 is positioned below the nozzle of the crucible. The translational stage is movable. A heater 72 is in thermal communication with the nozzle such that thermal energy provided by the heater is transferred to the feedstock. A feeder assembly 32 is positioned proximate the barrel of the crucible such that the feeder assembly feeds the feedstock into the barrel. The translational stage may provide negative pressure to retain a build plate to the translational stage. A preformed component may be positioned on the translational stage.
PROCESS FOR PRODUCING A SINTERED LITHIUM DISILICATE GLASS CERAMIC DENTAL RESTORATION AND KIT OF PARTS
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.
PROCESS FOR PRODUCING A SINTERED LITHIUM DISILICATE GLASS CERAMIC DENTAL RESTORATION AND KIT OF PARTS
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.
STRENGTHENED 3D PRINTED SURFACE FEATURES AND METHODS OF MAKING THE SAME
Glass articles including one or more 3D printed surface features attached to a surface of a substrate at a contact interface between the 3D printed surface feature and the surface. The 3D printed surface feature(s) include a glass or a glass-ceramic, a compressive stress region at an exterior perimeter surface of the 3D printed surface feature(s), and a central tension region interior of the compressive stress region. The 3D printed surface feature(s) may be formed of a contiguous preformed material 3D printed on a surface of a substrate. The compressive stress region of a 3D printed surface feature may be formed using an ion-exchange process.
STRENGTHENED 3D PRINTED SURFACE FEATURES AND METHODS OF MAKING THE SAME
Glass articles including one or more 3D printed surface features attached to a surface of a substrate at a contact interface between the 3D printed surface feature and the surface. The 3D printed surface feature(s) include a glass or a glass-ceramic, a compressive stress region at an exterior perimeter surface of the 3D printed surface feature(s), and a central tension region interior of the compressive stress region. The 3D printed surface feature(s) may be formed of a contiguous preformed material 3D printed on a surface of a substrate. The compressive stress region of a 3D printed surface feature may be formed using an ion-exchange process.
METHOD TO PREPARE THREE-DIMENSIONAL TRANSPARENT GLASS VIA POLYMER PLASTICITY
The present disclosure provides a method to fabricate three-dimensional transparent glass utilizing polymer plasticity, including the following steps. In step 1, synthesize polymer-glass powder composite containing dynamic chemical bonds, the bond exchange catalyst is added during the synthesis process, and then cure to obtain a two-dimensional sheet shape I, the bond exchange catalyst is used to activate a dynamic chemical bond in step 2. In step 2, shape the two-dimensional sheet shape I obtained in step 1 into a complex three-dimensional shape II under the conditions of the effect of an external force and the activable dynamic chemical bond. In step 3, pyrolyze the composite precursor at high temperature to obtain transparent glass with complex three-dimensional shape II. The present disclosure provides a method in shaping the transparent glass with complex geometries by unique polymer plasticity in lower temperature.
METHOD TO PREPARE THREE-DIMENSIONAL TRANSPARENT GLASS VIA POLYMER PLASTICITY
The present disclosure provides a method to fabricate three-dimensional transparent glass utilizing polymer plasticity, including the following steps. In step 1, synthesize polymer-glass powder composite containing dynamic chemical bonds, the bond exchange catalyst is added during the synthesis process, and then cure to obtain a two-dimensional sheet shape I, the bond exchange catalyst is used to activate a dynamic chemical bond in step 2. In step 2, shape the two-dimensional sheet shape I obtained in step 1 into a complex three-dimensional shape II under the conditions of the effect of an external force and the activable dynamic chemical bond. In step 3, pyrolyze the composite precursor at high temperature to obtain transparent glass with complex three-dimensional shape II. The present disclosure provides a method in shaping the transparent glass with complex geometries by unique polymer plasticity in lower temperature.
INTEGRATED ADDITIVE MANUFACTURING AND LASER PROCESSING SYSTEMS AND METHODS FOR CERAMIC, GLASS, AND SILICON CARBIDE APPLICATIONS
A method for fabricating a protonic ceramic energy device includes: coating an electrolyte layer on an anode layer; and densifying the electrolyte layer by a rapid laser reactive sintering (RLRS) process on the electrolyte layer and/or the anode layer to form a half-cell comprising a dense electrolyte and a porous anode.
INTEGRATED ADDITIVE MANUFACTURING AND LASER PROCESSING SYSTEMS AND METHODS FOR CERAMIC, GLASS, AND SILICON CARBIDE APPLICATIONS
A method for fabricating a protonic ceramic energy device includes: coating an electrolyte layer on an anode layer; and densifying the electrolyte layer by a rapid laser reactive sintering (RLRS) process on the electrolyte layer and/or the anode layer to form a half-cell comprising a dense electrolyte and a porous anode.