In the present work, an experimental investigation and characterization of Functionally Graded Materials (FGMs) is carried out. The Nickel (Ni) and Titanium dioxide (TiO₂) materials are taken as principal materials and the powder metallurgy technique is used for the preparation of specimens. The Nickel powder has a particle size of 20 μm with more than 99% purity and Titanium dioxide powder having 35 μm particle size with more than 99% purity is used for this study. The FGM specimens are prepared with five layers, with pure Nickel on one side and pure Titanium dioxide on opposite side of the specimen; and the three intermediate layers comprising of mixture of Nickel and Titanium dioxide. The five layered FGM samples are prepared with one inch diameter round die and the compacted samples are heated up to 1200°C in an inert gas (argon) atmosphere. The microscopic result shows that the microstructure of Ni/TiO₂ FGM has varied layer-by-layer and the interface between the layers are observed. As a part of mechanical characterization, both green and sintered FGM sample densities are measured for each layer of the sample. The Rockwell hardness test method is used to find the hardness of the each layer in the samples. Linear shrinkage of the specimen is calculated with the help of green sample dimensions. The Compression test is conducted on the sintered specimens by using universal testing machine; stress-strain behaviour and maximum stress reported.

在目前的工作中，进行了功能分级材料（FGM）的实验研究和表征。镍（Ni）和二氧化钛（TiO ₂）材料为主要材料，并采用粉末冶金技术制备样品。镍粉的粒径为20μm，纯度大于99％，二氧化钛粉的粒径为35μm，纯度大于99％。FGM样品分为五层，一侧为纯镍，另一侧为纯二氧化钛。三个中间层包括镍和二氧化钛的混合物。用一个直径为1英寸的圆模制备五层FGM样品，并将压实的样品在惰性气体（氩气）气氛中加热到1200°C。显微结果表明，Ni / TiO ₂的微观结构FGM逐层变化，并且观察到各层之间的界面。作为机械表征的一部分，对样品的每一层都测量了生坯和烧结后的FGM样品密度。洛氏硬度测试方法用于查找样品中每一层的硬度。样品的线性收缩是在绿色样品尺寸的帮助下计算的。用万能试验机对烧结后的试样进行压缩试验。报告了应力-应变行为和最大应力。