METHOD OF MAKING A MULTILAYER ARTICLE

摘要

A method of making a multilayer article includes providing a mould defining a first cavity with a removable element therein; placing a first particulate component in the cavity; compressing the component along a first axis in a first compression step to form a first layer of the article; removing the element from the cavity after formation of the first layer; placing one or more additional particulate components in the mould; compressing the one or more additional particulate components along the first axis in one or more additional compression steps after removal of the element to form one or more additional layers of the article, wherein the first layer meets one of the one or more additional layers along a first interface substantially parallel to the first axis and the first layer meets one of the one or more additional layers along a second interface substantially perpendicular to the first axis.