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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-7960</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/7960</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Геология</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Geology</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Technical silicification of wood materials</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Langhof</surname>
            <given-names>N. </given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Langhof</surname>
              <given-names>N. </given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Langhof</surname>
              <given-names>N. </given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Фрайбергский горно-технологический университет, Институт минералогии (Германия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Freiberg University of Mining and Technology (Germany)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Götze</surname>
            <given-names>J. </given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Götze</surname>
              <given-names>J. </given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Götze</surname>
              <given-names>J. </given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">Фрайбергский горно-технологический университет, Институт минералогии (Германия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Freiberg University of Mining and Technology (Germany)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Hengst</surname>
            <given-names>M. </given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Hengst</surname>
              <given-names>M. </given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Hengst</surname>
              <given-names>M. </given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff3"/>
        </contrib>
        <aff-alternatives id="aff3">
          <aff>
            <institution xml:lang="ru">Фрайбергский горно-технологический университет, Институт минералогии (Германия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Freiberg University of Mining and Technology (Germany)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Heimann</surname>
            <given-names>R. B.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Heimann</surname>
              <given-names>R. B.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Heimann</surname>
              <given-names>R. B.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff4"/>
        </contrib>
        <aff-alternatives id="aff4">
          <aff>
            <institution xml:lang="ru">Фрайбергский горно-технологический университет, Институт минералогии (Германия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Freiberg University of Mining and Technology (Germany)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2006-04-07">
        <day>07</day>
        <month>04</month>
        <year>2006</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2006</year>
      </pub-date>
      <volume>167</volume>
      <issue>2</issue>
      <fpage>62</fpage>
      <lpage>65</lpage>
      <history>
        <date date-type="received" iso-8601-date="2005-07-04">
          <day>04</day>
          <month>07</month>
          <year>2005</year>
        </date>
        <date date-type="accepted" iso-8601-date="2005-08-11">
          <day>11</day>
          <month>08</month>
          <year>2005</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2006-04-07">
          <day>07</day>
          <month>04</month>
          <year>2006</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2006 N.  Langhof, J.  Götze, M.  Hengst, R. B. Heimann</copyright-statement>
        <copyright-statement xml:lang="en">© 2006 N.  Langhof, J.  Götze, M.  Hengst, R. B. Heimann</copyright-statement>
        <copyright-year>2006</copyright-year>
        <copyright-holder xml:lang="ru">N.  Langhof, J.  Götze, M.  Hengst, R. B. Heimann</copyright-holder>
        <copyright-holder xml:lang="en">N.  Langhof, J.  Götze, M.  Hengst, R. B. Heimann</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/7960">https://pmi.spmi.ru/pmi/article/view/7960</self-uri>
      <abstract xml:lang="ru">
        <p>Техническое силикатирование древесины было проведено для улучшения ее свойств (сопротивление истиранию, влагопоглощение, прочность и др.) Экспериментальные исследования проводились с использованием двух сортов древесины (дуб и ель) и трех источников кремния, включая метасиликат натрия (Na2SiO3), коллоидную суспензию кремния (CSS) и тетраэтоксилан (TEOS). Эксперименты проводились в температурном диапазоне от 40 до 80 0C при нормальном давлении в стеклянных сосудах и при высоких температурах (до 138 0C) и давлении (до 12 бар) в автоклавах. Кроме микроскопического исследования (бинокулярное, поляризационная микроскопия, растровая электронная микроскопия, катодолюминесцентная микроскопия) были произведены измерения влагопоглощения и прочности. Катодолюминесцентная микроскопия оказалась наиболее эффективным методом обнаружения распределения SiO2 внутри и на поверхности образцов древесины. Материал, силикатированный с применением коллоидной суспензии кремния и TEOS, поглощал на 40 % меньше влаги, чем необработанные образцы. Твердость по Бринеллю может быть увеличена на 100 % по сравнению с образцами из свежей древесины, благодаря стекловидным слоям кремния на поверхности образцов, образовавшимся в результате превращения золя в гель.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Technical silicification of wood was performed to improve the properties (e.g. wear resistance, water absorption, hardness) of the material. Experimental studies were carried out using two types of wood (oak and spruce) and three different sources of silica including sodium metasilicate (Na2SiO3), a colloidal suspension of silica (CSS), and tetraethoxysilane (TEOS). Experiments were done in the temperature range between 40 °С and 80 °C under normal pressure in glass beakers and at higher temperatures (up to 138 °C) and pressures (up to 12 bar) in autoclaves. Besides microscopic investigations (binocular, polarizing microscopy, SEM, cathodoluminescence microscopy), measurements of water absorption and hardness were performed. CL microscopy proved to be the most effective method to reveal the distribution of SiO2 within and on the surface of the wood samples. Material silicified with colloidal silica and TEOS, respectively absorbed about 40 % less water than untreated specimens. Likewise, the Brinell hardness of treated samples could be increased by nearly 100 % compared to fresh wood samples, which is mainly caused by vitreous silica coatings (generated by sol-gel transformation) at the sample surface.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
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</article>
