Abstract:
An epoxy-based glue includes an epoxy material, and a solids component including diamond powder and silicon-carbide particles. The adhesive material may be used to form reaction-bonded silicon-carbide bonding reaction-bonded silicon-carbide parts together. The present disclosure also relates to a method of assembling a product from preforms (42, 44), including locating an adhesive layer (46), containing diamond powder (54) and silicon carbide particles (56), between opposed preform surfaces, carbonizing the layer, and infiltrating molten silicon into the preforms and the carbonized layer to convert the preforms into corresponding reaction-bonded silicon-carbide parts, and to convert the carbonized layer into a reaction-bonded silicon-carbide bonding region with a reduced amount of residual silicon. An assembled product, including at least two reaction-bonded silicon-carbide parts bonded together by processing a diamond-containing adhesive, is also disclosed.
Abstract:
The present invention relates to a heat dissipation coating agent and to a heat-dissipating plate including same, which efficiently dissipate heat from the surface of a heat-dissipating plate of an electric/electronic component. Particularly, the heat dissipation coating agent, which is applied to the surface of a heat-dissipating plate of an electric/electronic component, includes infrared radiation powder and a binder, and the heat-dissipating plate is coated with a heat dissipation layer consisting of the heat dissipation coating agent. Since the heat dissipation coating agent applied to the heat-dissipating plate is highly conductive, heat is emitted from the heat-dissipating plate by conduction as well as convection. In particular, the heat dissipation coating agent, which conducts heat with high conductivity, can be applied to a heat-dissipating plate of a high-power LED light source.
Abstract:
A nanocomposite can include a polyolefin composition having at least one polyolefin. The polyolefin composition can have a multimodal molecular weight distribution, such as a bimodal molecular weight distribution. The nanocomposite can also include at least 5% by weight of nanoparticles, relative to a total weight of the nanocomposite. The nanoparticles can be carbon nanoparticles, silicon nanoparticles, or SiC nanoparticles. A nanocomposite masterbatch can be prepared by melt blending the polyolefin composition with the nanoparticles. A polyolefin resin can be prepared by blending the nanocomposite with a polyolefin. Formed articles can include the polyolefin resin.
Abstract:
Coating compositions having improved mar and scratch resistance are disclosed. The coatings generally comprise particles having a hardness sufficient to provide the desired level of scratch and/or mar resistance. The improved resistance is achieved without affecting the appearance or mechanical performance of the coatings. Methods for using the coatings, and the substrates coated therewith, are also disclosed.
Abstract:
The invention relates to polyoxymethylene copolymers with medium molecular weight, processes for producing these, and their use. The invention furthermore relates to thermoplastic compositions which comprise mixtures of polyoxymethylene homo- or copolymers, production of these, use of these for producing metallic or ceramic moldings, and the resultant moldings.
Abstract:
A nanocomposite can include a polyolefin composition having at least one polyolefin. The polyolefin composition can have a multimodal molecular weight distribution, such as a bimodal molecular weight distribution. The nanocomposite can also include at least 5% by weight of nanoparticles, relative to a total weight of the nanocomposite. The nanoparticles can be carbon nanoparticles, silicon nanoparticles, or SiC nanoparticles. A nanocomposite masterbatch can be prepared by melt blending the polyolefin composition with the nanoparticles. A polyolefin resin can be prepared by blending the nanocomposite with a polyolefin. Formed articles can include the polyolefin resin.
Abstract:
Ein Verbundwerkstoff mit polymerer Matrixkomponente und teilchenförmiger Füllkomponente umfasst 20-50 Vol.% eines thermoplastischen Polymers; 15-60 Vol.% einer ersten teilchenförmige Füllkomponente, wobei die genannte erste Füllkomponente ausgewählt ist aus der Gruppe bestehend aus pulverförmigen Metallen, Metalloxiden, kovalenten Carbiden, metallartigen Carbiden, oder Gemischen solcher Pulver; 5-30 Vol.% einer zweiten teilchenförmigen Füllkomponente, wobei die genannte zweite Füllkomponente ein anorganisches und/oder mineralisches Material in Pulverform ist; und 1-1 5 Vol.% eines Haftvermittlers.