文献类型：期刊文献

英文题名：Thermoporometry of waterlogged archaeological wood: Insights into the change of pore traits after the water-removal by supercritical drying

作者：Guo, Juan[1] Chen, Jiabao[1] Li, Ren[1] Liu, Jian'an[2] Luo, Rupeng[2] Jiao, Lichao[1] Yin, Yafang[1]

第一作者：郭娟

通信作者：Yin, YF[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Dongxiaofu 1, Beijing 100091, Peoples R China;[2]Zhejiang Prov Inst Cultural Rel & Archaeol, Jiaogong Rd 71, Hangzhou 310012, Peoples R China

年份：2022

卷号：715

外文期刊名：THERMOCHIMICA ACTA

收录：;EI(收录号：20223112456925);Scopus(收录号：2-s2.0-85134888660);WOS:【SCI-EXPANDED(收录号:WOS:000838551900003)】；

基金：This work was supported by the National Key R&D Program of China [grant number 2020YFC1521800]. Dr. Fu Yang from the Perkin Elmer Company, Dr Zhe Wang from Inner Mongolia Agricultural University are acknowledged for DSC thermoporosimetry. Dr. Mengyu Dong and Dr. Yonggang Zhang from Research Institute of Wood Industry, Chinese Academy of Forestry, China are acknowledged for the archaeological wood collection and the wood identification.

语种：英文

外文关键词：Archaeological wood; Pore; Water-removal; DSC thermoporosimetry; N-2 adsorption; Mercury porosimetry

摘要：Pores of waterlogged archaeological oak wood with different preservation states and maximum water content (MWC) levels were studied in the water-saturated state by DSC thermoporosimetry and then in the supercritical dry state by N-2 adsorption and mercury porosimetry. Thermoporosimetry results showed that waterlogged archaeological wood was typical for an extremely large number of pores inferior to 20 nm in size, and macropores prevailed. Micropore, mesopore and macropore volumes of waterlogged archaeological wood with MWC of 460 +/- 31% were 723%, 687% and 424% higher than those of waterlogged recent wood. After water-removal, pore became less noticeable, leading to the lower number and area of three pore styles, i.e. micropores, mesopores and macropores. Mesopore cumulative volumes of archaeological wood decreased 70.3%, 62.7% and 42.4% respectively. Linear correlations were found between MWC and meso/macropore volume measured in the water-saturated state. Results illustrate pore traits of waterlogged archaeological wood could be significantly affected by water-removal.