A multi-channel honeycomb array crucible with the same temperature field

Abstract

The invention belongs to the technical field of high-flux sintering and melting preparation of small-size samples and relates to high-flux micro-manufacturing devices based on microwaves, in particular to a same-temperature-field multichannel honeycomb array crucible. The characteristic that microwaves can be used for heating the interiors of powdery materials is utilized, and meanwhile the characteristic that wave absorption materials are warmed rapidly to the constant temperature under the microwave effect is utilized, so that the wave absorption materials with the same components are prepared into a series of small-size crucible bodies; and under the effect of the same microwave energy field, the crucible bodies can be heated to the same temperature, and the powdery materials are subjected to auxiliary exterior heating, so that one-time high-flux sintering and melting preparation of the powdery materials in the crucible bodies under the same temperature field is achieved, and the problems that as for an existing material preparation method, when materials are prepared, component combination is singular, the exterior heating efficiency is low, the raw material using quantity is large, and the cost is high are solved.

Description

technical field [0001] The invention belongs to the technical field of high-throughput sintering and melting preparation of small-sized samples, and relates to a microwave-based high-throughput micro-manufacturing device, in particular to a multi-channel honeycomb array crucible with the same temperature field. Background technique [0002] The traditional new material research and development method can be summarized as a "trial and error method". It first predicts or selects the composition ratio of the target material based on existing theories or experiences, and then prepares and processes it in small batches (general metal materials require Tens of kilograms), and then adjust and optimize the composition according to the characterization results of the prepared samples, and then prepare and characterize again, and after many cycles, finally obtain the materials that meet the requirements. This one-time experiment, the trial-and-error method of discrete sample preparati...

AI Technical Summary

Problems solved by technology

This one-time experiment, the trial-and-error method of discrete sample preparation for preparing a sample is inefficient, and the research and development costs are expensive. According to statistics, the global new material research and development time takes an average of 5-12 years, which has become a bottleneck for the development of modern new materials (Introduction to the Materials Genome Project, Nature, 2014, 36(2): 89-104)

[0003] Existing material preparation methods (especially bulk material preparation technology) are generally aimed at a certain material system and prepare a sample of one component each time. The preparation efficiency is low and the preparation cost is high. The main reasons are the following three: A major technical flaw:

[0004] 1. The composition of the preparation material is single

The composition of the material plays a leading role in its performance. Taking the smelting and preparation method of metal materials as an example, the existing method can only select one composition combination method for batching and smelting at a time, which greatly reduces the conditions for determining the optimal composition ratio. s efficiency

[0005] 2. Inefficiency of external heating during material preparation

The traditional heating method is to use an external heat source to gradually conduct heat from the outside to the inside through thermal radiation. It takes a long time to raise the ambient temperature to the set degree, and the material volume, thermal conductivity and other parameters will also affect the temperature rise and heating of the material. Homogenization efficiency, so this radiation heating method has a long heating time and low heating efficiency

[0006] 3. The large amount of raw materials used to prepare monomer samples leads to high costs

However, the method of using microwaves to simultaneously heat the inside and outside of the powder material for high-throughput micro-manufacturing has not been reported so far.

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