A study of alumina spray dried granules on packing density and sintering shrinkage of simple and complex shape

Conference proceedings article


ผู้เขียน/บรรณาธิการ


กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง


รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่งSomton K., Dateraksa K., McCuiston R.

ผู้เผยแพร่Trans Tech Publications

ปีที่เผยแพร่ (ค.ศ.)2014

Volume number608

หน้าแรก175

หน้าสุดท้าย180

จำนวนหน้า6

ISBN9783038350637

นอก1013-9826

eISSN1662-9795

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84901928710&doi=10.4028%2fwww.scientific.net%2fKEM.608.175&partnerID=40&md5=33a9f7ea6d53fe2784616830351b2dfc

ภาษาEnglish-Great Britain (EN-GB)


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บทคัดย่อ

The relationship between granule property, pressed green density and shrinkage of 92% alumina spray dried granules were studied for both simple and complex shapes. Two types of granules, the in-house granule (A) and the commercial granule (B), was observed morphology using microscopy and liquid immersion techniques. Examination of the granules showed that granule A have several undesirable features; agglomeration, hollow granules and non-spherical granules where granule B showed them to be unagglomerated and spherical. The mixture A and B were conducted to study the particle size distribution (PSD) and compared with Dinger-Funk's ideal PSD. The result showed that granule mixture A: B 100:0 had closest PSD curve fitted but had lowest tapping and pressed green density than 70:30 and 30:70 mixtures. This is because the agglomerated shape in granule mixture 100:0 caused air gap in between granule contact resulting in low tap density. The specific fracture strengths of the granules can affect to the densification of green ceramic during pressing. Low pressed green density affected to a high amount of shrinkage during sintering and leading to small grain growth after sintered. The simple and complex shape follows the same trend in shrinkage. ฉ (2014) Trans Tech Publications, Switzerland.


คำสำคัญ

Packing densityParticle size distribution


อัพเดทล่าสุด 2023-29-09 ถึง 07:35