I have not had any problem obtaining incandescent light bulbs.
the filament is neither too thick nor too light
Generally, tungsten.
Modern light bulb filaments are usually Tungsten not Carbon. However early bulbs used things like silk coated with Carbon. Filament means thin thread. The bulbs are filled with inert gas like Argon to stop the filament from burning up with oxygen. Arc lamps use Carbon rods though.
tungsten filament, aluminum base
tungsten
Filament of light bulbs are made up of Tungsten.
No, not in the filament. You are probably thinking of compact fluorescent light bulbs, which do contain mercury.
The filament breaks.
That is the filament. Electricity traveling through the filament heats it to the point of glowing brightly - that is the light bulbs "light".
tungsten
Domestic light bulbs are simply the light bulbs (usually of the filament type) used in the home.
the filament is neither too thick nor too light
The light bulbs do.
Argon is used in filament light bulbs to displace oxygen and prevent the filament from burning. It creates an inert atmosphere inside the bulb, helping to prolong the life of the filament and improve the overall efficiency of the bulb.
Tungsten is the filament used in electric light bulbs that glows white hot when subjected to an electric current.
Assuming you're talking about light bulbs... the filament is made from Tungsten.
Light bulbs are typically made of glass, metal, and a filament made of tungsten.