摘要:
Techniques or processes for providing markings on products are disclosed. In one embodiment, the products have housings and the markings are to be provided on the housings. For example, a housing for a particular product can include an outer housing surface and the markings can be provided on the outer housing surface so as to be visible from the outside of the housing. The surface of the housing is able to be anodized and dyed, and the markings of the surface are able to be bleached markings of dyed anodization.
摘要:
Techniques or processes for providing markings on products are disclosed. In one embodiment, the products have housings and the markings are to be provided on the housings. For example, a housing for a particular product can include an outer housing surface and the markings can be provided on the outer housing surface so as to be visible from the outside of the housing. The markings are able to be interferometric colors and/or black.
摘要:
One embodiment provides a method comprising: providing a sample comprising a bulk amorphous alloy; scanning ultrasonically at least a portion of the sample to determine a parameter of the sample in the portion; and comparing the parameter to a predetermined standard to derive a property related to the sample.
摘要:
Described herein is a method of melting a bulk metallic glass (BMG) feedstock, comprising: heating at least a portion of the BMG feedstock to temperatures slightly below a solidus temperature of the BMG, wherein the portion remains a solid at the temperatures slightly below the solidus temperature and wherein a temperature distribution of the portion is essentially uniform; heating the portion of the BMG feedstock to temperatures above a liquidus point.
摘要:
Various embodiments provide methods and apparatus for active cooling regulation of a melting process. In one embodiment, a meltable material can be melted in a vessel that includes cooling channel(s) configured therein. A contact temperature TContact of the vessel at an interface with the melt can be measured and compared with a skull forming temperature TSkull and a wetting temperature TWetting of the melt on the vessel. A cooling rate can be regulated to regulate TContact to be TSkull
摘要:
A composite structure includes a matrix material having an intrinsic strain-to-failure rating in tension and a reinforcing material embedded in the bulk material. The reinforcing material is pre-stressed by a tensile force acting along one direction. The embedded reinforcing material interacts with the matrix material to place the composite structure into a compressive state. The compressive state provides an increased strain-to-failure rating in tension of the composite structure along a direction that is greater than the intrinsic strain-to-failure rating in tension of the matrix material along that direction. At least one of the matrix material and the reinforcing material is a bulk amorphous alloy (BAA). The reinforcing material can be a fiber or wire. In various embodiments, the matrix material may be a bulk amorphous alloy and/or the reinforcing material may be a bulk amorphous alloy.
摘要:
Provided in one embodiment is a method, comprising: forming a part comprising a bulk amorphous alloy, wherein the part comprises a sampling portion; determining a parameter related to the part by detecting by imaging on a surface of the sampling portion presence of crystals of the alloy; and evaluating the part based on the parameter.
摘要:
The present invention relates to reflective articles, such as solar mirrors, that include a sacrificial cathodic layer. The reflective article, more particularly includes a substrate, such as glass, having a multi-layered coating thereon that includes a lead-free sacrificial cathodic layer. The sacrificial cathodic layer includes at least one transition metal, such as a particulate transition metal, which can be in the form of flakes (e.g., zinc flakes). The sacrificial cathodic layer can include an inorganic matrix formed from one or more organo-titanates. Alternatively, the sacrificial cathodic layer can include an organic polymer matrix (e.g., a crosslinked organic polymer matrix formed from an organic polymer and an aminoplast crosslinking agent). The reflective article also includes an outer organic polymer coating, that can be electrodeposited over the sacrificial cathodic layer.
摘要:
Disclosed are coating compositions, such as primer compositions, suitable for providing corrosion protection to metal substrates, as well as related coated articles and methods.
摘要:
A pourable opaque centerport for solid propellant rocket motors and method for applying the same are disclosed. The pourable centerport inhibitor for solid propellant rocket motors has a curing system that includes a prepolymer and a curing agent. The prepolymer and the curing agent are combined to form a pourable polymeric binder that cures into an amorphous solid. The pourable centerport inhibitor also includes an opaque agent. The pourable centerport inhibitor may also include a plasticizer. The plasticizer, the prepolymer, and the curing agent are preferably the same type that is in the solid propellant with which it will be used in conjunction.