公开(公告)号：KR102131919B1

公开(公告)日：2020-07-08

申请号：KR1020180102320

申请日：2018-08-29

Applicant: 국방과학연구소

Inventor： 홍정표 ,  김성일 ,  홍우영 ,  심병효 ,  김진홍 ,  김준한

IPC: G01S11/14

公开(公告)号：KR1020030018695A

公开(公告)日：2003-03-06

申请号：KR1020010052949

申请日：2001-08-30

Applicant: 국방과학연구소

Inventor： 김진홍 ,  김문철 ,  박찬경 ,  송흥섭

IPC: C23C4/12

CPC classification number: C23C4/126 ,  B05B7/0006 ,  B05D2490/50 ,  C23C4/04

Abstract: PURPOSE: A method for preparing functionally gradient composite materials is provided which is capable of preparing uniformly mixed coating layer as maintaining physical properties and merits of each materials without deterioration or change of physical properties even when preparing functionally ingredient composite materials using materials having different physical properties. CONSTITUTION: The method for preparing functionally gradient composite materials comprises the steps of preparing a mixed coating layer by controlling types of material powder and coating process conditions in each shot unit using intermittent characteristics of detonation gun spraying; and forming a compositional gradient in a thickness direction by laying up the mixed coating layer comprising different fractions of each materials step by step through controlling of shot ratio of each powder, wherein the types of material powder supplied in each shot unit are controlled so that only a specific type of powder is injected into a tube barrel of a detonation gun sprayer per each shot using powder supplying units filled with each of the powders, degree of mixing of material powders in the mixed coating layer is controlled by controlling transfer speed of a specimen manipulator on which the coating layer is formed, thereby varying area of a part which is overlapped by continuous detonations, the fractions control design variables of the functionally gradient composite materials such as a compositional gradient in a thickness direction of the coating layer by changing thickness of each mixed coating layers when laying up each different mixed coating layers, and coating particles formed by one time of detonation is formed in a scattered shape by controlling the amount of powder supplied per each shot.

Abstract translation: 目的：提供一种制备功能梯度复合材料的方法，即使在使用具有不同物理性质的材料制备功能性成分复合材料时，也可以制备均匀混合的涂层，以保持每种材料的物理性能和优点，而不会降低或改变物理性能 。 构成：功能梯度复合材料的制备方法，包括使用爆震枪喷射的间歇特性，通过控制各喷射单元中的材料粉末的种类和涂布工艺条件来制备混合涂层; 并且通过控制每种粉末的喷射比来逐步地放置包括各种材料的不同部分的混合涂层，从而形成厚度方向上的组成梯度，其中每个喷射单元中供应的材料粉末的类型被控制，使得仅 使用填充有各粉末的粉末供给单元，将每种特定类型的粉末喷射到爆震枪喷射器的管筒中，通过控制样品的转移速度来控制混合涂层中的材料粉末的混合度 其中形成有涂层的操纵器，由此改变与连续爆炸重叠的部分的面积，分数通过改变涂层的厚度方向来控制功能梯度复合材料的设计变量，例如涂层的厚度方向上的组成梯度 每个混合涂层在铺设每个不同的混合涂层时，并涂覆部分 通过控制每次喷射所供给的粉末的量，通过一次爆炸形成的微粒形成为散射形状。