Ceramic Materials

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Ceramic Materials
Speaker??? Adviser Hsien-Chang Chang
2011/12/07
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Classification of Materials

• Engineering materials
• Composites
• Semiconductors
• Biomaterials

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Classification of Ceramic Materials

• ???(ceramic whiteware)
• ??(earthenware) ???????????
• ??(porcelain) ?????????????
• Stoneware ????????????????????????
• ??(glass) ???????
• ??(cement) ???????????????
• ????(refractory materials) ?????????????????
• ????(Fine/Advanced ceramics) ??????

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Classification of Ceramic Materials

• ????
• ?????????????????????????????
• ????
• ???????????????????????????(?????)

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(No Transcript)
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?? ?? ???? ????
?? ?? ?????????(????????????) ????(?????????)
?? ?? ??????? ?????
?? ?? ???????,????????????????? ??????????????????
?? ??? ??? ??? ???
?? ?? ????????????? ???????
?? ???? ???????? ????????????
?? ?? ??????????????????????? ????????????????????
?? ???? ? ?
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Crystal Structure
Crystal it is defined as an orderly array of
atoms in space. LRO long range order SRO
short range order
Corner1/8 Edge 1/4
Face 1/2 Interior 1
Unit cell (u.c.)
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Summary of Metallic Crystal Structures

• Simple cubic (SC)
• Face-Centered Cubic (FCC)
• Body-Centered Cubic (BCC)
• Hexagonal Close-Packed (HCP)

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Metallic Crystal Structures
Simple cubic (SC)
Atomic packing factor (APF) 52
Coordination number (CN) 6
1/8 x 8 1 atom/u.c.
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Face-Centered Cubic (FCC)
Atomic packing factor (APF) 74
Coordination number (CN) 12
1/8 x 8 1/2 x 6 4 atoms/u.c.
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Body-Centered Cubic (BCC)
Atomic packing factor (APF) 68
Coordination number (CN) 8
1/8 x 8 1 x 1 2 atoms/u.c.
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Hexagonal Close-Packed (HCP)
Atomic packing factor (APF) 74
Coordination number (CN) 12
1/3 x 12 1/2 x 2 1 x 3 8 atoms/u.c.
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???????-???????
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?????-??????(rC/rA)?????????
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Summary of Ceramic Structures

• ???/????(NaCl /Rock salt)
• ?????(CsCl, Cesium chloride)
• ?????(ZnS, Zinc blende structure)
• ????(CaF2, Fluorite structure)
• ?????(Perovskite structure)

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???/????(NaCl /Rock salt)

• ???????????????????????
• ????????????6,?????????0.414 ?0.732 ???
• ???????NaCl?MgO?MnS?LiF?FeO?

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???/????(NaCl /Rock salt)
Z 1
Z 3/4
Z 1/2
FCC all octahedral sites
8 tet. sites/u.c.
Z 1/4
1 x 8 8
4 oct. sites/u.c.
Z 0
1 x 1 12 x 1/4 4
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?????(CsCl, Cesium chloride)

• ??????????8

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?????(CsCl, Cesium chloride)
Z-level
Cl
Z 1
Cs
Z 1/2
Simple cubic structure not BCC
Z 0
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?????(ZnS, Zinc blende structure)

• ???4

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Diamond Structure ????
C
Z 1
Z 3/4
Z 1/2
Z 1/4
FCC 1/2 tetrahedral sites
Z 0
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????(CaF2, Fluorite structure)

• ???????????????,?????????AmXp???

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?????(Perovskite structure)

• ?????????????????

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????
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???????

• ?????
• ???????????????
• ????
• ??????????????
• ???????????

?(phase)?????????, ????????????

• ???(solid solutions)??????????,??????????????????
  ??,?????????a?ß??????
• ???????
• ??????(15 )
• ??????
• ?????
• ????

???
???
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????
?????
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????
????

• ????? (Biocompatibility)
• ???? (Bioactivity)

??--????

• ????
• ?? (Sputter)
• ???? (Plasma spray)
• ?????? (chemical vapor deposition, CVD)

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????
????? (Biocompatibility)
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???? (Bioactivity)
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????
?????
??????
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?? (Sputter)
??
??
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???? (Plasma spray)
???????
???
??
???
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?????? (chemical vapor deposition, CVD)
????
???
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Implantation
Integrin
??
???
?????
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??????
p. 154 Textbook
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p. 154 Textbook
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??????

• ??????????????,??????
• ???????? (Completely Resorbable Bioceramics)
• ?????,???????????????????????????(Ca3((PO)4)2,T
  CP)???????(amorphous calcium phosphates,ACP)??????
  (Calcium deficient apatites,CDA)?????????ACPgtTCPgt
  CDA
• ???????(Nearly Inert Bioceramics)
• ?????????,????????????????,???????????????????
  ??
• ????????(Surface-Active Bioceramics)
• ???????????????????????????????????????

????? ???? - ncumaterials ???? - udn???
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????????

• ?????????
• ???(plaster of paris)????????????,???????????????
  ???????????????,????????(foreign body
  giant-cells)??????????????????,???????,???????????
  ?????????????(tibia)?,????????
• ????(Ca-P)?????????,?????(CP)?????(TCP)?????(TECP)
  ????????(HAp)?,??????????30 MPa?

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???????

• ?????????????????????????????? 
• ???????????
• ????????????,????????????????,??????????? 
• ????????????????
• ???????????30???,????????,??????,????????,??????
  ????????????????????????????????????

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• ?????(1) ???????
• (Low Temperature Isotropic
  Carbon,??LTI?) (2) ????????
• (Utra-Low Temperature Isotropic Carbon,
• ??ULTI?,??Vapor-Deposition
  Carbon) (3) ???(Glassy Carbon?Vitreous Carbon) 
• ?????
• ?????

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????????

• ??????
• (1)?????????????? 
• (2)???????????,??????? 
• (3)??????????????,????????
• ????
• ?????????(Glass-Ceramics)???,???????????????????
  ,???????????,?????,???????(Controlled
  Crystallization)???,????????????

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???????

• ??????????????????????????????????????????????????
  ?????
• ??????????????,???????????????????????,???????????
  ???????????

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????

• ?????????????????
• ???????(Filler)????
• ??????(Matrix)
• ????????????
• ?????????????

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??-??

• ???????????????????????,???????????,?????????????
  ????????,????????,?????????,??????????????????????
  ?????/????????????????????????????????????????,??
  ?????????

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Thank you for your attention!