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CITYFLUX – Filter Sample (J Floor)

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Presentation on theme: "CITYFLUX – Filter Sample (J Floor)"— Presentation transcript:

1 CITYFLUX – Filter Sample (J Floor)

2 Colour guide for EDX data:
Aluminium Silicon Phosphorous Barium Zinc Sodium Sulphur Nitrogen Carbon Potassium Chlorine Oxygen Magnesium Iron Calcium

3 A B C D

4 A Foam damage

5 a b c 10um

6 b a b c C Ca Si Fe c a Si Si K Ca Ca Al S S Al

7 After Before

8 Foam damage

9 A B C D

10 B

11 Foam damage in progress – 3 images taken over 20 seconds

12 a b c 10um

13 c a Cl S Ca a b c Sample moved .: Background spectrum? b Ca S K Si Cl

14 Images after Foam damage

15 A B C D

16 a b c d C

17 d a C Si Ca Mg S Al C Si K Ca O Cl a b c d b c Ca C Al Si Mg C K O S Cl

18 Images after

19 A B C D

20 D 1 2 3

21 a b c 1

22 Foam damage – images taken over 15 seconds

23 a a b c Fe Si b c C C S Cl Ca

24 Before Image before/after After

25 D 1 2 3

26 a b c d e 2 2

27 d a S C Ca C Si Mg Ca Al Cl O S Fe a b c d e C e Ca c b C C O

28 Before Particle flipped over After Damage by beam

29 D 1 2 3

30 a b c d f e 3

31 b Si a C Al Si C Ca Cl Cl K Ca Al S a b c d f e S O K Fe c f C C Si Cl Al Ca K S Fe Mg e C d Ca Ca C Si O O

32 After image

33 Overview after investigation,
Extensive beam damage

34 Particle sizes: All less than ~10um, most <2um
Particle Composition – Carbon or silicate material


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