The present disclosure is directed to a system and method for manufacturing building materials made of volcanic material. In particular, the present disclosure is directed to the gathering of molten volcanic material, cooling the volcanic material, and shaping the volcanic material into shapes that may be used in construction.

As used herein, the term lava refers to any molten rock generated by geothermal energy and expelled through fractures in planetary crust. Lava shall also refer to lava flow and molten volcanic material as used herein. Lava flow is a moving outpouring of lava created during a non-explosive effusive eruption. While this application generally refers to lava, a person having ordinary skill in the art would understand that similar systems and methods may be applied with respect to volcanic material or molten rock that is collected from within the Earth's core and that has not erupted to the surface in a naturally occurring manner.

The present subject-matter relates to landscaping product comprising steel slag and optionally cement, compositions and processes for preparing same.

The present subject-matter relates to landscaping product comprising steel slag and optionally cement, compositions and processes for preparing same.

A porous fiber preform enclosed within a mold may be melt infiltrated by pouring a molten material through an inlet of the mold, the porous fiber preform comprising ceramic fibers. A ceramic matrix composite component comprising the ceramic fibers may be formed by solidifying the molten material that is in the mold and in the porous fiber preform.

A process for producing an internal cavity in a CMC article and mandrels used therewith. The process entails incorporating a mandrel made of a material that is substantially absorbed during thermal treatment of a preform to form the CMC article. The mandrel material is preferably reactive with one or more constituents of the CMC preform during the thermal treatment. The material is preferably silicon or a silicon alloy.

A process for producing an internal cavity in a CMC article and mandrels used therewith. The process entails incorporating a mandrel made of a material that is substantially absorbed during thermal treatment of a preform to form the CMC article. The mandrel material is preferably reactive with one or more constituents of the CMC preform during the thermal treatment. The material is preferably silicon or a silicon alloy.

The invention is the development of new and unique formulations and mixtures along with unique and improved manufacturing processes for a clear departure for all manufacturing processes in which calcium silicate or cement-based formulations and mixtures are commonly utilized in manufacturing fire liner panel systems of the prior art. The invention serves the current fire protection/training industry with new and unique formulations and mixtures along with improved manufacturing processes that produce a fire liner panels system with enhanced performance characteristics which are unparalleled teachings not present, nor found in any of the prior art.

An improved permeable bottom crucible is provided. The permeable bottom crucible is particularly suitable for degassing molten metal. The permeable bottom crucible comprises a refractory ceramic body comprising walls and an integral bottom wherein the integral bottom has a porous portion. The porous portion has a porosity which is higher than a porosity of the walls. Inductive coils are around the refractory ceramic body. A plug is arranged to disperse gas through the porous portion.

Method for creating a brake pad with a block of friction material, in which sodium hydroxide and sodium silicate are dissolved in water, the aqueous solution of sodium hydroxide and sodium silicate is mixed with commercial metakaolin until a wet paste is obtained, the wet paste is formed and dried until a dried geopolymeric aggregate is obtained, the aggregate is ground to a powder, the dried ground aggregate is used as an exclusive or almost-exclusive inorganic geopolymeric binder in a friction material compound and the raw compound is hot-molded under a pressure greater than a water saturation pressure at the molding temperature.

Method for creating a brake pad with a block of friction material, in which sodium hydroxide and sodium silicate are dissolved in water, the aqueous solution of sodium hydroxide and sodium silicate is mixed with commercial metakaolin until a wet paste is obtained, the wet paste is formed and dried until a dried geopolymeric aggregate is obtained, the aggregate is ground to a powder, the dried ground aggregate is used as an exclusive or almost-exclusive inorganic geopolymeric binder in a friction material compound and the raw compound is hot-molded under a pressure greater than a water saturation pressure at the molding temperature.