Saint-Gobain Ceramics & Plastics, Inc.

Saint-Gobain Centre De Recherches Et D'etudes Europeen

Certainteed Gypsum, Inc.

Societe Europeenne Des Produits Refractaires

Saint-Gobain Cermaics & Plastics, Inc.

Yves Boussant-Roux

Doruk Omer Yener

Jennifer H Czerepinski

Ralph Bauer

Sujatha Iyengar

Christopher Arcona

Michael D Kavanaugh

Alan J Brandes

Tracy H Panzarella

Olivier Guiselin

Michel Gaubil

Isabelle Cabodi

Olivier Citti

Guan Wang

Nathalie Pluta

Samuel Marlin

Doruk O Yener

Vimal K Pujari

Gwo S Swei

Flavien Fremy

Charles Nicholas McGarry

Emmanuel Nonnet

Alain Zanoli

David J Bravet

David F Louapre

Paul Braun

Abhaya Kumar Bakshi

Cecile O Mejean

Kristin Breder

Nabil J Nahas

Caroline Levy

Alexandra Marazano

David Louapre

Richard Avedikian

Sylvain Petigny

Elodie Bahon

Alain P Zanoli

Jostein Mosby

Ana-Maria Popa

Eric Moch

Edouard Schiavo

Bernard Bouteiller

Arne Menne

Jacques Guigonis

Tracey H Panzarella

Samuel S Marlin

An abrasive grain is disclosed and may include an elongated body. The body may define a length (l), a width (w), and a height (h), where the length is the longest dimension. The elongated body may have a first end face, a second end face, and a side surface extending between the first end face and the second end face. The body can include a twist along an axis body.

Abrasive particles having an elongated body comprising a twist along an axis of the body

An abrasive particle having a body including a first major surface, a second major surface opposite the first major surface, and a side surface extending between the first major surface and the second major surface, such that a majority of the side surface comprises a plurality of microridges.

Abrasive particles and methods of forming same

An abrasive grain is disclosed and may include a body. The body may include a central portion and 3 radial arms extending outwardly from the central portion along the entire length of the central portion of the body. A first radial arm, a second radial arm, and a third radial arm can define a total angle of less than 180 degrees. The body may also include at least one groove extending from a base surface along a first side of the body.

Abrasive particles having complex shapes and methods of forming same

An abrasive grain is disclosed and may include a body. The body may define a length (l), a height (h), and a width (w). In a particular aspect, the length is greater than or equal to the height and the height is greater than or equal to the width. Further, in a particular aspect, the body may include a primary aspect ratio defined by the ratio of length:height of at least about 2:1. The body may also include an upright orientation probability of at least about 50%.

The invention relates to a plaster-based composition comprising nanometric boehmite and/or nanometric aluminium trihydroxide, this composition making it possible to obtain products having better dimensional stability at high and in particular at very high temperature. The invention also relates to the method of obtaining the products, and the products produced.

Composition for plasterboards and products obtained

Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and another surface extending from the major surface.

Abrasive article including shaped abrasive particles

A powder essentially composed of aggregates based on boron nitride, the powder exhibiting an overall chemical composition, as percentages by weight, including between 40 and 45% of boron, between 53 and 57% of nitrogen, less than 400 ppm by weight of calcium, less than 5 %, in total, of other elements and more than 90% of boron nitride, limit included, as percentage by weight and on the basis of the combined crystalline phases, a mean circularity of greater than or equal to 0.90, a median pore size of less than or equal to 1.5 &#x3bc;m and an apparent porosity of less than or equal to 55%.

Boron nitride aggregate powder

A shaped abrasive particle including a body having a first major surface, a second major surface, and a side surface extending between the first major surface and the second major surface, wherein the body includes a sharpness-shape-strength factor (3SF) within a range between about 0.7 and about 1.7 and a Shape Index within a range between at least about 0.51 and not greater than about 0.99.

A fused product including lithium-manganese spinel, which is optionally doped, having a spinel structure ABO, where the site A is occupied by lithium and the site B is occupied by manganese, it being possible for the site B to be doped with an element B' and it being possible for the site A to exert a substoichiometry or a superstoichiometry with respect to the site B, so that the product observes the formula LiMnB&#x2032;O, with &#x2212;0.20&#x2266;x&#x2266;0.4 and 0&#x2266;y&#x2266;1, the element B&#x2032; being chosen from aluminum, cobalt, nickel, chromium, iron, magnesium, titanium, vanadium, copper, zinc, gallium, calcium, niobium, yttrium, barium, silicon, boron, zirconium and their mixtures.

Method for the production of an LMO product

An abrasive article includes a body having abrasive particles contained within a bond material. The abrasive particles can include a majority content of silicon nitride and a minority content of sintering material including at least two rare-earth oxide materials. In an embodiment, the rare-earth oxide materials can include NdOand YO. In a particular embodiment, the abrasive particles comprise a content (wt %) of NdOthat is greater than a content of YO(wt %).

Abrasive articles including abrasive particles of silicon nitride

An abrasive article includes a bonded abrasive body having abrasive particles contained within a bond material. The abrasive particles include silicon carbide and are essentially free of carbon-based and boron-based sintering aid materials. In an embodiment, the bond material can include a phenolic resin. In another embodiment, the bonded abrasive body can include an oxide phase disposed interstitially between the silicon carbide abrasive particles. In an additional embodiment, the abrasive particles can consist essentially of silicon carbide and aluminum oxide in a ratio of silicon carbide to alumina of at least about 8:1.

Liquid phase sintered silicon carbide abrasive particles

Growing community of inventors

Avignon, France

Yves Boussant-Roux