Abrasive particles having complex shapes and methods of forming same

摘要

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%.

主权项

1. A shaped abrasive particle comprising:
a body having a length (l), a width (w), and a height (h), wherein the body comprises a three-pointed star having a first arm, a second arm, and a third arm extending from a central portion, and wherein the first arm, second arm and third arm define a total angle of less than about 180 degrees; and wherein the body comprises a curling factor of not greater than about 10, wherein the curling factor is defined as a ratio between the greatest height of the body at one tip of an arm (ht) as compared to a smallest dimension of height of the body at the interior (hi).