Abstract: A coating composition and a method of making a coating composition is provided. The coating composition includes: a) a binder system comprising a mixture of a caramelized carbohydrate component, an inorganic colloidal binder, and an adjuvant; and b) a protective agent. The coating composition is useful for protecting articles from corrosion and/or erosion caused by contact with molten metal.

Abstract: A torque sensor including a shaft that receives an applied torque is disclosed. The shaft includes a magnetoelastic region that generates a non-negligible magnetic field responsive to the applied torque and one or more null regions that each generates a negligible magnetic field. The torque sensor includes a plurality of null region sensors proximal a null region that generate a null region magnetic field measure corresponding to a magnitude of an ambient magnetic field. The torque sensor includes a magnetoelastic region sensor proximal the magnetoelastic region that generates a magnetoelastic region magnetic field measure corresponding to the magnitude of the ambient magnetic field and a magnitude of the non-negligible magnetic field. The torque sensor includes a controller coupled to the null region sensors and the magnetoelastic region sensor that calculates a magnitude of the applied torque based on the null region magnetic field measures and the magnetoelastic region magnetic field measure.

Abstract: A torque sensor assembly including a shaft configured to receive an applied torque. The shaft includes at least one region being magnetoelastic and configured to generate a magnetic field in response to the applied torque. A plurality of sensors, circumferentially positioned around the at least one region, configured to generate a plurality of signals that are indicative of the magnetic field. Each of the plurality of signals includes multiple harmonic components. A controller is connected with the plurality of sensors and being configured to receive the plurality of signals and determine (i) an average of the plurality of signals in order to cancel at least one of the harmonic components of the multiple harmonic components for each of the plurality of signals, and (ii) a magnitude of the applied torque based on the average of the plurality of signals.

Abstract: A method of making a refractory article is provided. The method includes: a) mixing a binder system, a refractory charge, and a second colloidal binder to form an aqueous slurry; b) casting the aqueous slurry into a mold; c) subjecting the mold containing the aqueous slurry to a temperature that is lower than a slurry casting temperature for a time sufficient to form a green strength article; and d) firing the green strength article at a temperature of at least 450° C. for a time sufficient to achieve thermal homogeneity, thereby forming a refractory article. Refractory articles made in accordance with the method have a unique combination of pore structure and mechanical properties.

Abstract: A method of making a refractory article is provided. The method includes: a) mixing a binder system, a refractory charge, and a second colloidal binder to form an aqueous slurry; b) casting the aqueous slurry into a mold; c) subjecting the mold containing the aqueous slurry to a temperature that is lower than a slurry casting temperature for a time sufficient to form a green strength article; and d) firing the green strength article at a temperature of at least 450° C. for a time sufficient to achieve thermal homogeneity, thereby forming a refractory article. Refractory articles made in accordance with the method have a unique combination of pore structure and mechanical properties.

Abstract: A torque sensor including a shaft that receives an applied torque is disclosed. The shaft includes a magnetoelastic region that generates a non-negligible magnetic field responsive to the applied torque and null regions that generate a negligible magnetic field. The torque sensor includes null region sensors that generate a null region magnetic field measure corresponding to an ambient magnetic field. The torque sensor includes a magnetoelastic region sensor that generates a magnetoelastic region magnetic field measure corresponding to the ambient magnetic field and the non-negligible magnetic field. The torque sensor includes a controller that determines whether a null region sensor has entered an intense ambient magnetic field condition and whether a magnetoelastic region sensor has entered a magnetoelastic region sensor saturation condition. The controller also calculates a magnitude of the applied torque based on the null region magnetic field measures and the magnetoelastic region magnetic field measure.

Abstract: A coating composition and a method of making a coating composition is provided. The coating composition includes: a) a binder system comprising a mixture of a caramelized carbohydrate component, an inorganic colloidal binder, and an adjuvant; and b) a protective agent. The coating composition is useful for protecting articles from corrosion and/or erosion caused by contact with molten metal.

Abstract: A method of making a refractory article is provided. The method includes: a) mixing a binder system, a refractory charge, and a second colloidal binder to form an aqueous slurry; b) casting the aqueous slurry into a mold; c) subjecting the mold containing the aqueous slurry to a temperature that is lower than a slurry casting temperature for a time sufficient to form a green strength article; and d) firing the green strength article at a temperature of at least 450° C. for a time sufficient to achieve thermal homogeneity, thereby forming a refractory article. Refractory articles made in accordance with the method have a unique combination of pore structure and mechanical properties.