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Seamless Ceramics for Biomedical Applications

Prof. Guillermo Aguilar-Mendoza and his colleagues from the University of California, Riverside (UCR) and Prof. Javier Garay and his colleagues from the University of California, San Diego have developed an all ceramic, biocompatible, hermetically sealed package for encapsulating electronics. This technology uses disparate transparent polycrystalline ceramics and is sealed by laser.  The laser directly joins the disparate surfaces, protecting the electronic device from damage while ensuring a high-quality seal. This state-of-the-art technology provides  superior packaging for biomedical implant devices that has long-term biocompatibility. It also provides safe and leak-proof seals. Fig 1: Picture of transparent ceramics fabricated at UCR.

Double-Negative-Index Ceramic Aerogels For Thermal Superinsulation

UCLA researchers in the Departments of Chemistry and Biochemistry and Materials Science and Engineering have developed a novel ceramic aerogel material that has robust mechanical and thermal stability under extreme conditions.

Ceramic And Metallic Cellular Structures Wtih Interconnected Microchannels

UCLA researchers in the Department of Mechanical Engineering have developed cellular porous metallic and ceramic structures that can be used to increase the production and recovery of tritium for fusion power reactors or as a support for electrode materials.

Super Ceramics With Self-Dispersed Nanoparticles Via Casting

UCLA researchers in the Departments of Mechanical and Aerospace Engineering and Materials Science and Engineering have developed a novel casting method to fabricate high performance bulk ceramic materials containing dispersed nanoparticles.

Powder bed additive manufacturing method of fabricating a porous matrix

An addictive manufacturing method used to create lightweight materials with tunable physical properties.

Method for Commercial Production of Super-Hydrophobic Materials

UCLA researchers in the Department of Mechanical and Aerospace Engineering have developed a novel method for industrial production of super-hydrophobic material.

Processing Spinel-Less Thermal Barrier Coating Systems

This invention, intended for use in the processing of turbine engine blades’ thermal barrier coatings, is a two-step procedure used to produce a thermally grown oxide that is completely devoid of lifetime-limiting spinel oxides. Both steps take place at the same temperature used in present day bond coat pre-oxidation, utilize everyday gases, and can be performed serially in the same furnace, in a matter of hours. In step one, pre-oxidation of a bond-coated blade yields a thermally grown oxide (TGO) layer that contains a limited amount of spinel. In step two, all spinel is removed in situ. In an industrial-scale setup, the entire process would take place in less than 24 hours, including ramp times to and from the exposure temperature. Once blade specimens are cooled and removed from the furnace, they are then ready to be coated with the thermally protective yttria-stabilized zirconia (YSZ) layer, using industry-standard techniques. Due to the nature of the process, no new spinel is expected to grow at the critical TGO–YSZ interface for as long as the part operates in service, which means that the blade will be completely spinel-less for its entire usable lifetime. By eliminating all spinel-related failure mechanisms, this may result in longer blade lifetimes and therefore significant cost reduction.

Liquid-Repellent Surfaces Made of Any Materials

UCLA researchers in the Department of Mechanical and Aerospace Engineering have developed a structured surface that can be made of any material (but demonstrated with glass) that repels all liquids (even fluorinated solvents) without using any repellant coating.

Mechanochemical Synthesis of Mg2Si and Related Compounds and Alloys

Professor Kaner and colleagues have developed methods to synthesize substantially phase pure compounds of magnesium silicide and related alloys. The phase purity achieved by this method is unprecedented, and the yielded products are suitable to be used as thermoelectric materials in the mid- to high-temperature range (400 K to 800 K). 

Ceramic Materials with Improved Mechanical Properties and Electrical Conductivity

Researchers at the University of California, Davis have developed a ceramic composite material with improved mechanical properties and electrical conductivity.

Magnetically Controlled Casting Process

Current casting methods that produce features in a solid material with rapid prototyping techniques require highly specialized and expensive equipment.  Further, these types of equipment must be programmed before each casting to achieve the desired results.  Also, these traditional casting processes are synthesized either through layer-by-layer deposition which can be very time consuming or by mixing non-soluble components together which leads to heterogeneities and reduction in performance.                                                  

Impact Resistant Composites and Tough Materials

Manufacturers have been looking for a next-generation of composite materials that can absorb the shock and impact of intense collisions and accidents.  Some plastic composites and metal alloys have offered the advantage of being light weight, but they are still limited in their ability to have comparable shock resistance to their heavier metal counterparts.  Further, their high costs have made them cost prohibitive for their limited benefits.                                      

CeramicAsh: Material and Method

Researchers at UCLA have developed a method for reducing the manufacturing costs associated with chemically bonded ceramics. 

Efficient And Accurate Undercut Detection System

Molding and casting of parts can be done more simply and economically for parts that are free from undercut features, primarily because a more expensive multi-piece mold must be used for parts with such undercut features. Therefore immediate feedback to the designer about the presence of costly undercuts allows for their early removal in the design process. Without immediate and accurate feedback designers can wind up with high part costs, waste, and a complicated manufacturing process. UC Berkeley researchers have developed a design system, based on a sophisticated new algorithm that allows for very efficient and rapid identification of undercuts in 3D geometric models. The Berkeley system uses graphics acceleration to allow a user to rotate an object, examine the undercuts in real time and accurately identify undercuts on a pixel by pixel basis. The system also highlights the portions of faces, including curved faces, which have undercuts. Early detection and removal of undercuts ensures rapid development of the lowest cost design. The system can also be used as a subroutine in finding whether any under-cut free parting directions exist and for evaluating which is optimal if there are multiple choices. The ability to find the optimal direction along with pixel level accuracy makes the system highly desirable for designers.

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