ADORNOVA BPF

Description

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Type:	High-gold containing metal-ceramic alloy on the gold basis, type 4 (extra hard) acc. DIN EN ISO 22674
Colour:	yellow

 

Applicable scope:	Inlays, Onlays	●
	Crowns	●
	Small bridges	●
	Large-span bridges	●
	Milling, cone and attachment works	●
	Modeling casting	●

 

Composition:	Au	77,70
(mass fraction in %)	Pt	19,50
	Ir	0,50
	Zn	2,00
	Ta	0,30

 

Technical specifications:	Density in g/cm³	19,1
	Vickers hardness HV 5/30	(s)200 (n)220 (a-n)230
	Yield strength Rp0,2 in MPa	(s)460 (n)500 (a-n)520
	Elongation at break in %	(s)5 (n)4 (a-n)3
	Average linear CTE 25 – 500 °C in 10-6 K-1	13,8
	Average linear CTE 25 – 600 °C in 10-6 K-1	14,1
	Elastic modulus in GPa	100
	Melting interval in °C	1090 - 1180

 

Processing:	Preheating temp. of the casting moulds in °C	850
	Casting temperature in °C	1320
	Crucibles	Graphite
	Curing	500°C/15min

 

Suitable solders:	Joints before ceramic firing	AL 1040 PF
	Joints after ceramic firing	AL 750

 

1) Brief description:

s – self-curing, n – after ceramic firing, a-s – curing from s condition

a-n – curing from n condition

 

2) All information about cured condition is given according to the alloy:

– Oxide firing 10min/ 960°C + 4x4min/ 960°C for yellow conventional bonding alloys

– Oxide firing 10min/ 980°C + 4x4min/ 980°C for white conventional bonding alloys

– Oxide firing 10min/ 800°C + 4x4min/ 800°C for LFC-systems

Corresponding data are true under these conditions only.

 

3) The ceramic firing should be carried out according to the manufacturer's instructions.