Evaluation of the Current Status of the Combinatorial Approach for the Study of Phase Diagrams

Abstract

This paper provides an evaluation of the effectiveness of using the high throughput combinatorial approach for preparing phase diagrams of thin film and bulk materials. Our evaluation is based primarily on examples of combinatorial phase diagrams that have been reported in the literature as well as based on our own laboratory experiments. Various factors that affect the construction of these phase diagrams are examined. Instrumentation and analytical approaches needed to improve data acquisition and data analysis are summarized.

Rapid Construction of Fe–Co–Ni Composition-Phase Map by Combinatorial Materials Chip Approach

“…The conventional approach to phase diagram construction, featuring synthesis and characterization of one sample at a time, is costly, time-consuming, and unsystematic, which makes it less than satisfactory in the current era of accelerating technology. Since the 1960s, attempts have been made to find more efficient ways to map the composition–phase relationship . The combinatorial material chip technique, featuring high-throughput synthesis and rapid characterization of combinatorial library, − has shown great potential to accelerate materials screening and optimization. , Yoo et al demonstrated in the Fe–Ni–Co ternary alloy system that it is feasible to map the complex relationship between crystal structure and composition using a thin film combinatorial materials chip containing continuous composition spread. , Janghorban et al showed on a similar type of samples that a Cr–Ni–Re phase diagram at 1100 °C agrees well with the published phase diagram.…”

Thermoelectric properties of the LaCoO3-LaCrO3 system using a high-throughput combinatorial approach

“…Preparation and characterization of a solid solution series using the conventional solid state synthesis and measurement techniques are often time-consuming, and the combinatorial approach could be an efficient alternative to locate compositions with optimal properties in a complex material system [17][18][19][20][21]. The goal of this work is to prepare and study the trend of the structure and power factor, PF of the LaCo 1-x Cr x O 3 combinatorial films using high throughput synthesis and thermoelectric property screening techniques.…”

Combinatorial development and high throughput materials characterisation of steels

“…5 Traditionally, experimental methods to establish phase diagrams for new alloys have consisted of a wide range of techniques, from diffusion based methods such as multiple point junctions, powder metallurgical routes such as hot isostatic pressing and mechanical blending, to melting with induction heating and lasers and more recently chemical vapour deposition. 6,7 Equilibrium based phase diagrams for binary and ternary systems are then established using a combination of differential calorimetry to establish the thermodynamics and optical and scanning electron microscopy to establish composition and microstructure, possibly accompanied by X-ray diffraction (XRD) analysis to verify phases and phase fractions.…”