This work presents an experimental investigation for effective thermal properties of open cell ceramic foam (80.13 Al 2 O 3 , 17.79 SiO 2 , 1.57 MgO, and 0.51 Na 2 O. % weight),which were measured using the Transient Plane Source (TPS) technique, and the parameters, which influenced them, and the influence of foam structure. Three types of pore per inch (ppi) were tested (10, 30 and 50). Three sensors were used, K5599 (of 60 mmdiameter), K4922 (of 30 mmdiameter) and K5501 (of 13 mmdiameter).The

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... percentage difference between the highest and lowest results for each sensor and ppi are: for K5501 sensor were 34% in 10 ppi, 15% in 30 ppi and 18% in 50 ppi, for sensor K4922 were 19%, 11% and 13%, respectively, and for K5599 were 17%, 14% and 16%, respectively. The results show that the sensor K4922 is the more suitable sensor to test such material especially which has high ppi. ‫اﻟﺨﻠﯿﺔ‬ ‫ﻣﻔﺘﻮﺣﺔ‬ ‫اﻟﺴﯿﺮاﻣﯿﻜﯿﺔ‬ ‫ﻟﻠﺮﻏﻮة‬ ‫اﻟﻔﻌﺎﻟﺔ‬ ‫اﻟﺤﺮارﯾﺔ‬ ‫اﻟﺨﺼﺎﺋﺺ‬ ‫ﺣﺴﺎب‬ ‫اﻟﺨﻼﺻﺔ‬ : ‫اﻟﺒﺤﺚ‬ ‫ھﺬا‬ ‫ﯾﻘﺪم‬ ‫ﻟﻠﺮﻏﻮة‬ ‫اﻟﻔﻌﺎﻟﺔ‬ ‫اﻟﺤﺮارﯾﺔ‬ ‫ﻟﻠﺨﺼﺎﺋﺺ‬ ‫ﻋﻤﻠﯿﺔ‬ ‫دراﺳﺔ‬ ‫اﻟﺨﻠﯿﺔ‬ ‫ﻣﻔﺘﻮﺣﺔ‬ ‫اﻟﺴﯿﺮاﻣﯿﻜﯿﺔ‬ ‫اﻟﻮزﻧﯿﺔ‬ ‫اﻟﻨﺴﺐ‬ ‫ﺣﺴﺐ‬ ‫ﻛﯿﻤﯿﺎﺋﻲ‬ ‫ﺑﺘﺮﻛﯿﺐ‬ (80.13 Al 2 O 3 , 17.79 SiO 2 , 1.57 MgO, and 0.51 Na 2 O) ‫واﻟﻤﻘﺎﺳﺔ‬ ‫ﺗﻘﻨﯿﺔ‬ ‫ﺑﺈﺳﺘﺨﺪام‬ Transient Plane Source (TPS). ‫اﻟﻌﻮاﻣﻞ‬ ‫ﺟﻤﯿﻊ‬ ‫دراﺳﺔ‬ ‫اﯾﻀﺎ‬ ‫اﻟﺴﯿﺮاﻣﯿﻜﯿﺔ‬ ‫ﻟﻠﺮﻏﻮة‬ ‫اﻟﺪاﺧﻠﻲ‬ ‫اﻟﺒﻨﺎء‬ ‫ﺗﺄﺛﯿﺮ‬ ‫ﻓﯿﮭﺎ‬ ‫ﺑﻤﺎ‬ ‫اﻟﻘﯿﺎس‬ ‫ﻓﻲ‬ ‫اﻟﻤﺆﺛﺮة‬. ‫اﻟﺮﻏﻮة‬ ‫ﻣﻦ‬ ‫اﻧﻮاع‬ ‫ﻋﺪة‬ ‫اﺳﺘﺨﺪام‬ ‫ﺗﻢ‬ ‫اﻟﻮاﺣﺪ‬ ‫اﻹﻧﺞ‬ ‫ﺧﻼل‬ ‫اﻟﺨﻼﯾﺎ‬ ‫ﻋﺪد‬ ‫او‬ ‫اﻟﺨﻠﯿﺔ‬ ‫ﺑﺤﺠﻢ‬ ‫ﺑﯿﻨﮭﺎ‬ ‫ﻓﯿﻤﺎ‬ ‫ﺗﺨﺘﻠﻒ‬ (ppi). ‫اﺣﺠﺎم‬ ‫ﺛﻼث‬ ‫اﺳﺘﺨﺪام‬ ‫ﺗﻢ‬ ‫أﯾﻀﺎ‬ ‫اﻟﻤﺴﺘﺸﻌﺮات‬ ‫ﻣﻦ‬ ‫ھﻲ‬ ‫و‬ K5599 ‫ﺑﻘﻄﺮ‬ 60 mm , K4922 ‫ﺑﻘﻄﺮ‬ 30 mm ‫و‬ K5501 ‫ﺑﻘﻄﺮ‬ 13 mm. ‫ﺑﺎﻟﻨﺴﺒﺔ‬ ‫ﻣﺌﻮﯾﺔ‬ ‫ﻛﻨﺴﺒﺔ‬ ‫ﻗﯿﻤﺔ‬ ‫وأوطﺊ‬ ‫أﻋﻠﻰ‬ ‫ﺑﯿﻦ‬ ‫اﻹﺧﺘﻼف‬ ‫ﻣﻘﺪار‬ ‫ﯾﺒﻠﻎ‬ ‫ﻟﻠﻤﺘﺤﺴﺲ‬ K5501 ‫ﯾﻠﻲ‬ ‫ﻛﻤﺎ‬ 34% ‫ﻣﻊ‬ 10 ppi ‫و‬ 15% ‫ﻣﻊ‬ 30ppi ‫و‬ 18% ‫ﻣﻊ‬ 50ppi ‫اﻷوﺳﻂ‬ ‫ﻟﻠﻤﺘﺤﺴﺲ‬ ‫اﯾﻀﺎ‬ K4922 ‫ﯾﻠﻲ‬ ‫ﻛﻤﺎ‬ 19% ، 11% ‫و‬ 13% ‫اﻟﻜﺒﯿﺮ‬ ‫ﻟﻠﻤﺘﺤﺴﺲ‬ ‫وﺑﺎﻟﻨﺴﺒﺔ‬ ،‫اﻟﺘﻮاﻟﻲ‬ ‫ﻋﻠﻰ‬ 17% ، 14% ‫و‬ 16% ‫اﻟﺘﻮاﻟﻲ‬ ‫ﻋﻠﻰ‬. ‫ﻧﻮع‬ ‫ﻣﻦ‬ ‫اﻟﻤﺘﺤﺴﺲ‬ ‫ﻛﻔﺎءة‬ ‫اظﮭﺮت‬ ‫اﻟﻨﺘﺎﺋﺞ‬ K4922 ‫اﻟﺴﯿﺮاﻣﯿﻜﯿﺔ‬ ‫اﻟﺮﻏﻮة‬ ‫ﻟﻘﯿﺎس‬ ‫ﻣﺘﺤﺴﺲ‬ ‫ﻛﺄﻓﻀﻞ‬ ‫ﺧﺎﺻﺔ‬ ‫اﻟﻮاﺣﺪ‬ ‫ﻟﻺﻧﺞ‬ ‫اﻟﺨﻼﯾﺎ‬ ‫ﻣﻦ‬ ‫ﻛﺒﯿﺮ‬ ‫ﻋﺪد‬ ‫ﺗﻤﺘﻠﻚ‬ ‫او‬ ‫ﺻﻐﯿﺮة‬ ‫ﺧﻼﯾﺎ‬ ‫ذات‬ ‫ﺗﻜﻮن‬ ‫اﻟﺘﻲ‬ ‫اﻷﻧﻮاع‬ ‫ﻣﻊ‬ .