公开(公告)号：WO1997004958A1

公开(公告)日：1997-02-13

申请号：PCT/CA1996000496

申请日：1996-07-23

Applicant: WESTAIM TECHNOLOGIES INC.

Inventor： WESTAIM TECHNOLOGIES INC. ,  APTE, Prasad, S. ,  TACHAUER, Ernesto, S. ,  SOLOMON, Travis, Kyle

IPC: B32B18/00

CPC classification number: B32B18/00 ,  B28B1/002 ,  C04B35/581 ,  C04B35/63424 ,  C04B35/63436 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/658 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2237/066 ,  C04B2237/36 ,  C04B2237/363 ,  C04B2237/365 ,  C04B2237/366 ,  C04B2237/368 ,  Y10T156/1048 ,  Y10T156/1075 ,  Y10T428/131

Abstract: A process is provided for the manufacture of thin walled ceramic structures, particularly conical or near conical shaped structures. The process involves a tape casting technique wherein a green tape is prepared from a colloidal suspension containing a ceramic powder, a binder system, a plasticizer and a solvent. The suspension is cast into a thin sheet and dried to form a pliable tape. The tape is cut into planar, shaped pieces. Non-planar components of the final structure are preformed from the cut planar tape pieces into predetermined three-dimensional shapes. The planar and preformed components are sequentially assembled within a die and compacted under pressure to form a green body. The green body is subjected first, to a burnout cycle to form a brown body, and then sintered to form the unitary, cohesive, thin walled ceramic structure.

Abstract translation: 提供了一种用于制造薄壁陶瓷结构，特别是圆锥形或近圆锥形结构的方法。 该方法涉及一种胶带浇铸技术，其中生胶带由含有陶瓷粉末，粘合剂体系，增塑剂和溶剂的胶态悬浮液制备。 将悬浮液浇铸成薄片并干燥以形成柔韧的胶带。 将胶带切成平面的成形件。 最终结构的非平面部件由切割的平面带片预成形为预定的三维形状。 将平面和预成型的部件依次组装在模具中并在压力下压实以形成生坯体。 首先将生坯体进行烧制循环以形成棕色体，然后烧结以形成一体的，内聚的薄壁陶瓷结构体。