A photo-curable resin composition for three-dimensional shaping including: a resin component (A) containing a (meth)acrylate compound (A1) represented by General Formula (1)

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(where R.sub.1 is a hydrogen atom or a methyl group, and R.sub.2 is a linear, branched, or cyclic trivalent hydrocarbon group with one to eight carbon atoms which may have three or less heteroatoms), and a urethane (meth)acrylate compound (A2) having two or more radical-polymerizable functional groups; inorganic particles (B); and a photoradical polymerization initiator (C). 40% by mass or more and 90% by mass or less of the (meth)acrylate compound (A1) is contained in the resin component (A). 10% by mass or more and 60% by mass or less of the urethane (meth)acrylate compound (A2) is contained in the resin component (A).

A photo-curable resin composition for three-dimensional shaping including: a resin component (A) containing a (meth)acrylate compound (A1) represented by General Formula (1)

##STR00001##

(where R.sub.1 is a hydrogen atom or a methyl group, and R.sub.2 is a linear, branched, or cyclic trivalent hydrocarbon group with one to eight carbon atoms which may have three or less heteroatoms), and a urethane (meth)acrylate compound (A2) having two or more radical-polymerizable functional groups; inorganic particles (B); and a photoradical polymerization initiator (C). 40% by mass or more and 90% by mass or less of the (meth)acrylate compound (A1) is contained in the resin component (A). 10% by mass or more and 60% by mass or less of the urethane (meth)acrylate compound (A2) is contained in the resin component (A).

A system for fabricating an acoustic metamaterial is provided. In an embodiment, a system for fabricating an acoustic metamaterial includes determining at least one tuned physical property for each of a plurality of micro-resonators according to a desired acoustic property of the acoustic metamaterial. For a particular physical property, a value of the tuned physical property for at least one of the plurality of micro-resonators is different from a value of the tuned physical property for at least one other of the plurality of micro-resonators. The system also includes an additively manufacturing device configured to form the acoustic metamaterial such that the acoustic metamaterial comprises a first structure and the plurality of micro-resonators embedded within the first structure. Forming the acoustic metamaterial is performed such that an actual physical property of each of the plurality of micro-resonators is equal to a corresponding tuned physical property for each of the plurality of micro-resonators.

A method may include fused filament fabricating a fused filament fabricated component by delivering a softened filament to selected locations at or adjacent to a build surface. The softened filament may include a sacrificial binder and a powder including a shape memory alloy (SMA). The method also may include removing substantially all the sacrificial binder from the fused filament fabricated component to leave an unsintered component; and sintering the unsintered component to join particles of the SMA and form an SMA component.

Herein disclosed is a method of treating a component of a fuel cell, which includes the step of exposing the component of the fuel cell to a source of electromagnetic radiation (EMR). The component comprises a first material. The EMR has a wavelength ranging from 10 to 1500 nm and the EMR has a minimum energy density of 0.1 Joule/cm2. Preferably, the treatment process has one or more of the following effects: heating, drying, curing, sintering, annealing, sealing, alloying, evaporating, restructuring, foaming. In an embodiment, the substrate is a component in a fuel cell. Such component comprises an anode, a cathode, an electrolyte, a catalyst, a barrier layer, a interconnect, a reformer, or reformer catalyst. In an embodiment, the substrate is a layer in a fuel cell or a portion of a layer in a fuel cell or a combination of layers in a fuel cell or a combination of partial layers in a fuel cell.

A shaping material for a powder bed fusion method, including a powder of a fluororesin, wherein the fluororesin has a D50 of 30 μm or more and 200 μm or less, and the fluororesin has a D10 of 12 μm or more.

The invention relates to a method for producing an object from a construction material, the construction material comprising radically crosslinkable groups, NCO groups and groups having Zerewitinoff active H atoms, and the object being a three-dimensional object and/or a layer. During and/or after the production of the object, the construction material is heated to a temperature of >50° C., and the construction material comprises one or more cyclic tin compounds of formula F-I, F-II and/or F-III.

Systems, devices, and methods are provided for producing a 3d-printable composite material for large scale printing. A method can include receiving a first component comprising a (meth)acrylic monomer or a (meth)acrylic oligomer, or a combination thereof. The method can include receiving a second component comprising a photoinitiator and a third component comprising a polymerization enhancer. The method can include mixing the first component, second component, and third component with a mixing reactor to form a mixture. The method can include filtering the mixture with a filtration unit and removing a solid residue from the mixture. The method can include curing the filtered mixture with a radiation unit into a gel component and a liquid component. The method can include separating the gel component with a phase separation unit and then milling the gel component. And the method can include mixing the gel component, the photoinitiator, the mineral filler and optionally the recycled previously printed composite material to form the composite material.

A method of forming a catalyst is provided herein. The method comprises combining a binder, a support, and an active metal to form a slurry composition. The method further comprises applying the slurry composition using an additive manufacturing process to form a green part. The method further comprises exposing the green part to heat at a temperature of from about 10° C. to about 150° C. to form the hardened part. The method further comprises applying a ceramic-based coating material to the hardened part to form the catalyst.

A method of forming a catalyst is provided herein. The method comprises combining a binder, a support, and an active metal to form a slurry composition. The method further comprises applying the slurry composition using an additive manufacturing process to form a green part. The method further comprises exposing the green part to heat at a temperature of from about 10° C. to about 150° C. to form the hardened part. The method further comprises applying a ceramic-based coating material to the hardened part to form the catalyst.