Investigating the mechanisms behind long-term board-restraint procedure enhancing the mounting's dimensional stability

IF 3.5 2区综合性期刊 0 ARCHAEOLOGY

Journal of Cultural Heritage Pub Date : 2024-05-23 DOI:10.1016/j.culher.2024.05.003

Chengquan Qiao , Yuxuan Gong , Decai Gong

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引用次数: 0

Abstract

The traditional mounting process involves a critical and time-consuming board-restraint procedure. It is widely acknowledged in practice that the dimensional stability of a mounting improves with a prolonged restraint period on the drying board. Yet, the underlying reasons for the enhanced dimensional stability from long-term board-restraint are not well-understood. This study investigates the mechanisms at play through systematic experimentation. It was found that humidity cycling enhances the dimensional stability of the mounting by diminishing its hydroexpansivity and irreversible shrinkage. Specifically, humidity cycling induces fiber hornification, which reduces the hydroexpansivity of the mounting. Concurrently, it facilitates the redistribution of stresses and strains within the board-restrained mounting, mitigating internal stresses and the resulting irreversible shrinkage. This study contributes to a deeper understanding of the board-restraint procedure and how it affects the dimensional stability of the mounting.

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研究长期木板约束程序提高安装尺寸稳定性的机制

传统的裱糊工艺涉及到一个关键且耗时的板材固定程序。在实践中，人们普遍认为裱糊的尺寸稳定性会随着在烘干板上的长时间限制而提高。然而，人们还不太清楚长期板材约束能提高尺寸稳定性的根本原因。本研究通过系统实验对其作用机制进行了研究。研究发现，湿度循环通过降低水膨胀率和不可逆收缩率来增强裱糊的尺寸稳定性。具体来说，湿度循环会导致纤维角化，从而降低镶样的水膨胀性。同时，它还能促进板约束安装件内部应力和应变的重新分布，减轻内应力和由此产生的不可逆收缩。这项研究有助于加深对电路板约束程序及其如何影响安装件尺寸稳定性的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Cultural Heritage 综合性期刊-材料科学：综合

CiteScore

6.80

自引率

9.70%

发文量

166

审稿时长

52 days

期刊介绍： The Journal of Cultural Heritage publishes original papers which comprise previously unpublished data and present innovative methods concerning all aspects of science and technology of cultural heritage as well as interpretation and theoretical issues related to preservation.