SlovenščinaCatalogue of Slovene clays

sample43Bitnje Račnik · Upper Carniola

46.233762 14.325152

Collected by Živa Slavec

Field Pottery Kiln by Milan Štebe from Podboršt – Bitnje Račnik · Upper Carniola
Field Pottery Kiln by Milan Štebe from Podboršt
Photo archive of SEM

Sample 43 is clay from Bitnje Račnik (Upper Carniola). The recommended firing temperature is 900–1050 °C. The beginning of sintering is at 1100–1250 °C. At 1100 °C shrinkage is 8 % and porosity 3 %.

Clay samples

  1. Sample 43 – 800 °C800 °C
  2. Sample 43 – 900 °C900 °C
  3. Sample 43 – 1000 °C1000 °C
  4. Sample 43 – 1100 °C1100 °C
  5. Sample 43 – 1200 °C1200 °C
segrevanjeheating uppriporočena temp. žganjarecommended firing temperatureszačetek sintranjathe beginning of sinteringmehčanjesofteningžganje/firing °C%%00224466881010121214141616181820202222suha glina/dry clay900 °C1000 °C1100 °C1200 °C1300 °C
  • segrevanje
    heating up
  • priporočena temp. žganja
    recommended firing temperatures
  • začetek sintranja
    the beginning of sintering
  • mehčanje
    softening
%048121620suhadry9001000110012001300°C
poroznost/porosity %skrčki/shrinkage %

Clay preparation for testing

  1. unprocessed clayunprocessed clay
  2. sifted and dried claysifted and dried clay
  3. 012341.00.20.05%grain size in mm
  4. 2.6 % = 1.0 mm2.6 % = 1.0 mm
  5. 0 % = 0.2 mm0 % = 0.2 mm
  6. 0.1 % = 0.05 mm0.1 % = 0.05 mm